muttrc



muttrc(5)                        User Manuals                        muttrc(5)


NAME

       muttrc - Configuration file for the Mutt Mail User Agent


DESCRIPTION

       A mutt configuration file consists of a series of "commands".  Each
       line of the file may contain one or more commands.  When multiple
       commands are used, they must be separated by a semicolon (";").

       The hash mark, or pound sign ("#"), is used as a "comment" character.
       You can use it to annotate your initialization file. All text after the
       comment character to the end of the line is ignored.

       Single quotes ("'") and double quotes (""") can be used to quote
       strings which contain spaces or other special characters.  The
       difference between the two types of quotes is similar to that of many
       popular shell programs, namely that a single quote is used to specify a
       literal string (one that is not interpreted for shell variables or
       quoting with a backslash [see next paragraph]), while double quotes
       indicate a string which should be evaluated.  For example, backticks
       are evaluated inside of double quotes, but not single quotes.

       \ quotes the next character, just as in shells such as bash and zsh.
       For example, if want to put quotes (""") inside of a string, you can
       use "\" to force the next character to be a literal instead of
       interpreted character.

       "\\" means to insert a literal "\" into the line.  "\n" and "\r" have
       their usual C meanings of linefeed and carriage-return, respectively.

       A "\" at the end of a line can be used to split commands over multiple
       lines, provided that the split points don't appear in the middle of
       command names.

       It is also possible to substitute the output of a Unix command in an
       initialization file.  This is accomplished by enclosing the command in
       backticks (`command`).

       UNIX environment variables can be accessed like the way it is done in
       shells like sh and bash: Prepend the name of the variable by a dollar
       ("$") sign.


COMMANDS

       alias [-group name [...]] key address [, address [ ... ]]
       unalias [ *  | key ]

              alias defines an alias key for the given addresses. Each address
              will be resolved into either an email address (user@example.com)
              or a named email address (User Name <user@example.com>). The
              address may be specified in either format, or in the format
              "user@example.com (User Name)".  unalias removes the alias
              corresponding to the given key or all aliases when "*" is used
              as an argument. The optional -group argument to alias causes the
              aliased address(es) to be added to the named group.

       group [-group name] [-rx EXPR [ ... ]] [-addr address [ ... ]]
       ungroup [-group name ] [ * | [[-rx EXPR [ ... ]] [-addr address [ ... ]]]

              group is used to directly add either addresses or regular
              expressions to the specified group or groups. The different
              categories of arguments to the group command can be in any
              order. The flags -rx and -addr specify what the following
              strings (that cannot begin with a hyphen) should be interpreted
              as: either a regular expression or an email address,
              respectively.  ungroup is used to remove addresses or regular
              expressions from the specified group or groups. The syntax is
              similar to the group command, however the special character *
              can be used to empty a group of all of its contents.

              These address groups can also be created implicitly by the
              alias, lists, subscribe and alternates commands by specifying
              the optional -group option.

              Once defined, these address groups can be used in patterns to
              search for and limit the display to messages matching a group.

       alternates [-group name] regexp [ regexp [ ... ]]
       unalternates [ *  | regexp [ regexp [ ... ]] ]

              alternates is used to inform mutt about alternate addresses
              where you receive mail; you can use regular expressions to
              specify alternate addresses.  This affects mutt's idea about
              messages from you, and messages addressed to you.  unalternates
              removes a regular expression from the list of known alternates.
              The -group flag causes all of the subsequent regular expressions
              to be added to the named group.

       alternative_order type[/subtype] [ ... ]
       unalternative_order [ *  | type/subtype] [...]

              alternative_order command permits you to define an order of
              preference which is used by mutt to determine which part of a
              multipart/alternative body to display.  A subtype of "*" matches
              any subtype, as does an empty subtype.   unalternative_order
              removes entries from the ordered list or deletes the entire list
              when "*" is used as an argument.

       auto_view type[/subtype] [ ... ]
       unauto_view type[/subtype] [ ... ]

              This commands permits you to specify that mutt should
              automatically convert the given MIME types to text/plain when
              displaying messages.  For this to work, there must be a
              mailcap(5) entry for the given MIME type with the copiousoutput
              flag set.  A subtype of "*" matches any subtype, as does an
              empty subtype.

       mime_lookup type[/subtype] [ ... ]
       unmime_lookup type[/subtype] [ ... ]

              This command permits you to define a list of "data" MIME content
              types for which mutt will try to determine the actual file type
              from the file name, and not use a mailcap(5) entry given for the
              original MIME type.  For instance, you may add the
              application/octet-stream MIME type to this list.

       bind map1,map2,... key function
              This command binds the given key for the given map or maps to
              the given function. Multiple maps may be specified by separating
              them with commas (no whitespace is allowed).

              Valid maps are: generic, alias, attach,  browser, editor,
              index, compose,  pager, pgp, postpone,  mix.

              For more information on keys and functions, please consult the
              Mutt Manual. Note that the function name is to be specified
              without angle brackets.

       account-hook [!]regexp command
              This hook is executed whenever you access a remote mailbox.
              Useful to adjust configuration settings to different IMAP or POP
              servers.

       charset-hook alias charset
              This command defines an alias for a character set.  This is
              useful to properly display messages which are tagged with a
              character set name not known to mutt.

       iconv-hook charset local-charset
              This command defines a system-specific name for a character set.
              This is useful when your system's iconv(3) implementation does
              not understand MIME character set names (such as iso-8859-1),
              but instead insists on being fed with implementation-specific
              character set names (such as 8859-1).  In this specific case,
              you'd put this into your configuration file:

              iconv-hook iso-8859-1 8859-1

       message-hook [!]pattern command
              Before mutt displays (or formats for replying or forwarding) a
              message which matches the given pattern (or, when it is preceded
              by an exclamation mark, does not match the pattern), the given
              command is executed.  When multiple message-hooks match, they
              are  executed  in  the order in which they occur in the
              configuration file.

       folder-hook [!]regexp command
              When mutt enters a folder which matches regexp (or, when regexp
              is preceded by an exclamation mark, does not match regexp), the
              given command is executed.

              When several folder-hooks match a given mail folder, they are
              executed in the order given in the configuration file.

       macro map key sequence [ description ]
              This command binds the given sequence of keys to the given key
              in the given map or maps.  For valid maps, see bind. To specify
              multiple maps, put only a comma between the maps.

       color object foreground background [ regexp ]
       color index foreground background [ pattern ]
       uncolor index pattern [ pattern ... ]

              If your terminal supports color, these commands can be used to
              assign foreground/background combinations to certain objects.
              Valid objects are: attachment, body, bold, error, header,
              hdrdefault, index, indicator, markers,  message, normal, prompt,
              quoted, quotedN,  search, signature, status, tilde, tree,
              underline.  If the sidebar is enabled the following objects are
              also valid: sidebar_divider, sidebar_flagged, sidebar_highlight,
              sidebar_indicator, sidebar_new, sidebar_spoolfile.  The body and
              header objects allow you to restrict the colorization to a
              regular expression.  The index object permits you to select
              colored messages by pattern.

              Valid colors include: white, black, green, magenta, blue,  cyan,
              yellow, red, default, colorN.

       mono object attribute [ regexp ]
       mono index attribute [ pattern ]

              For terminals which don't support color, you can still assign
              attributes to objects.  Valid attributes include: none, bold,
              underline,  reverse, and standout.

       [un]ignore pattern [ pattern ... ]
              The ignore command permits you to specify header fields which
              you usually don't wish to see.  Any header field whose tag
              begins with an "ignored" pattern will be ignored.

              The unignore command permits you to define exceptions from the
              above mentioned list of ignored headers.

       lists [-group name] regexp [ regexp ... ]
       unlists regexp [ regexp ... ]
       subscribe [-group name] regexp [ regexp ... ]
       unsubscribe regexp [ regexp ... ]

              Mutt maintains two lists of mailing list address patterns, a
              list of subscribed mailing lists, and a list of known mailing
              lists.  All subscribed mailing lists are known.  Patterns use
              regular expressions.

              The lists command adds a mailing list address to the list of
              known mailing lists.  The unlists command removes a mailing list
              from the lists of known and subscribed mailing lists.  The
              subscribe command adds a mailing list to the lists of known and
              subscribed mailing lists.  The unsubscribe command removes it
              from the list of subscribed mailing lists. The -group flag adds
              all of the subsequent regular expressions to the named group.

       mbox-hook [!]regexp mailbox
              When mutt changes to a mail folder which matches regexp, mailbox
              will be used as the "mbox" folder, i.e., read messages will be
              moved to that folder when the mail folder is left.

              The first matching mbox-hook applies.

       mailboxes filename [ filename ... ]
       unmailboxes [ * | filename ... ]

              The mailboxes specifies folders which can receive mail and which
              will be checked for new messages.  When changing folders,
              pressing space will cycle through folders with new mail.  The
              unmailboxes command is used to remove a file name from the list
              of folders which can receive mail.  If "*" is specified as the
              file name, the list is emptied.

       my_hdr string
       unmy_hdr field

              Using my_hdr, you can define headers which will be added to the
              messages you compose.  unmy_hdr will remove the given user-
              defined headers.

       hdr_order header1 header2 [ ... ]
              With this command, you can specify an order in which mutt will
              attempt to present headers to you when viewing messages.

       save-hook [!]pattern filename
              When a message matches pattern, the default file name when
              saving it will be the given filename.

       fcc-hook [!]pattern filename
              When an outgoing message matches pattern, the default file name
              for storing a copy (fcc) will be the given filename.

       fcc-save-hook [!]pattern filename
              This command is an abbreviation for identical fcc-hook and save-
              hook commands.

       send-hook [!]pattern command
              When composing a message matching pattern, command is executed.
              When multiple send-hooks match, they are executed in the order
              in which they occur in the configuration file.

       send2-hook [!]pattern command
              Whenever a message matching pattern is changed (either by
              editing it or by using the compose menu), command is executed.
              When multiple send2-hooks match, they are executed in the order
              in which they occur in the configuration file.  Possible
              applications include setting the $sendmail variable when a
              message's from header is changed.

              send2-hook execution is not triggered by use of enter-command
              from the compose menu.

       reply-hook [!]pattern command
              When replying to a message matching pattern, command is
              executed.  When multiple reply-hooks match, they are executed in
              the order in which they occur in the configuration file, but all
              reply-hooks are matched and executed before send-hooks,
              regardless of their order in the configuration file.

       crypt-hook regexp key-id
              The crypt-hook command provides a method by which you can
              specify the ID of the public key to be used when encrypting
              messages to a certain recipient.  The meaning of "key ID" is to
              be taken broadly: This can be a different e-mail address, a
              numerical key ID, or even just an arbitrary search string.  You
              may use multiple crypt-hooks with the same regexp; multiple
              matching crypt-hooks result in the use of multiple key-ids for a
              recipient.

       open-hook regexp "command"
       close-hook regexp "command"
       append-hook regexp "command"

              These commands provide a way to handle compressed folders. The
              given regexp specifies which folders are taken as compressed
              (e.g.  "\\.gz$"). The commands tell Mutt how to uncompress a
              folder (open-hook), compress a folder (close-hook) or append a
              compressed mail to a compressed folder (append-hook). The
              command string is the printf(3) like format string, and it
              should accept two parameters: %f, which is replaced with the
              (compressed) folder name, and %t which is replaced with the name
              of the temporary folder to which to write.

       push string
              This command adds the named string to the keyboard buffer.

       set [no|inv|&|?]variable[=value] [ ... ]
       toggle variable [ ... ]
       unset variable [ ... ]
       reset variable [ ... ]

              These commands are used to set and manipulate configuration
              variables.

              Mutt knows four basic types of variables: boolean, number,
              string and quadoption.  Boolean variables can be set (true),
              unset (false), or toggled. Number variables can be assigned a
              positive integer value.

              String variables consist of any number of printable characters.
              Strings must be enclosed in quotes if they contain spaces or
              tabs.  You may also use the "C" escape sequences \n and \t for
              newline and tab, respectively.

              Quadoption variables are used to control whether or not to be
              prompted for certain actions, or to specify a default action.  A
              value of yes will cause the action to be carried out
              automatically as if you had answered yes to the question.
              Similarly, a value of no will cause the the action to be carried
              out as if you had answered "no." A value of ask-yes will cause a
              prompt with a default answer of "yes" and ask-no will provide a
              default answer of "no."

              The reset command resets all given variables to the compile time
              defaults.  If you reset the special variable all, all variables
              will reset to their compile time defaults.

       source filename
              The given file will be evaluated as a configuration file.

       spam pattern format
       nospam pattern

              These commands define spam-detection patterns from external spam
              filters, so that mutt can sort, limit, and search on ``spam
              tags'' or ``spam attributes'', or display them in the index. See
              the Mutt manual for details.

       subjectrx pattern replacement
       unsubjectrx [ * | pattern ]

              subjectrx specifies a regular expression pattern which, if
              detected in a message subject, causes the subject to be replaced
              with the replacement value. The replacement is subject to
              substitutions in the same way as for the spam command: %L for
              the text to the left of the match, %R for text to the right of
              the match, and %1 for the first subgroup in the match (etc). If
              you simply want to erase the match, set it to "%L%R". Any number
              of subjectrx commands may coexist.

              Note this well: the replacement value replaces the entire
              subject, not just the match!

              unsubjectrx removes a given subjectrx from the substitution
              list. If * is used as the pattern, all substitutions will be
              removed.

       unhook [ *  | hook-type ]
              This command will remove all hooks of a given type, or all hooks
              when "*" is used as an argument.  hook-type can be any of the
              -hook commands documented above.

       mailto_allow header-field [ ... ]
       unmailto_allow [ * | header-field ... ]

              These commands allow the user to modify the list of allowed
              header fields in a mailto: URL that Mutt will include in the the
              generated message.  By default the list contains only subject
              and body, as specified by RFC2368.


PATTERNS

       In various places with mutt, including some of the above mentioned hook
       commands, you can specify patterns to match messages.

   Constructing Patterns
       A simple pattern consists of an operator of the form "~character",
       possibly followed by a parameter against which mutt is supposed to
       match the object specified by this operator.  For some characters, the
       ~ may be replaced by another character to alter the behavior of the
       match.  These are described in the list of operators, below.

       With some of these operators, the object to be matched consists of
       several e-mail addresses.  In these cases, the object is matched if at
       least one of these e-mail addresses matches. You can prepend a hat
       ("^") character to such a pattern to indicate that all addresses must
       match in order to match the object.

       You can construct complex patterns by combining simple patterns with
       logical operators.  Logical AND is specified by simply concatenating
       two simple patterns, for instance "~C mutt-dev ~s bug".  Logical OR is
       specified by inserting a vertical bar ("|") between two patterns, for
       instance "~C mutt-dev | ~s bug".  Additionally, you can negate a
       pattern by prepending a bang ("!") character.  For logical grouping,
       use braces ("()"). Example: "!(~t mutt|~c mutt) ~f elkins".

   Simple Patterns
       Mutt understands the following simple patterns:

       ~A          all messages
       ~b EXPR     messages which contain EXPR in the message body.
       =b STRING   If IMAP is enabled, like ~b but searches for STRING on the
                   server, rather than downloading each message and searching
                   it locally.
       ~B EXPR     messages which contain EXPR in the whole message.
       =B STRING   If IMAP is enabled, like ~B but searches for STRING on the
                   server, rather than downloading each message and searching
                   it locally.
       ~c EXPR     messages carbon-copied to EXPR
       %c GROUP    messages carbon-copied to any member of GROUP
       ~C EXPR     messages either to: or cc: EXPR
       %C GROUP    messages either to: or cc: to any member of GROUP
       ~d MIN-MAX  messages with "date-sent" in a Date range
       ~D          deleted messages
       ~e EXPR     messages which contain EXPR in the "Sender" field
       %e GROUP    messages which contain a member of GROUP in the "Sender"
                   field
       ~E          expired messages
       ~f EXPR     messages originating from EXPR
       %f GROUP    messages originating from any member of GROUP
       ~F          flagged messages
       ~g          PGP signed messages
       ~G          PGP encrypted messages
       ~h EXPR     messages which contain EXPR in the message header
       =h STRING   If IMAP is enabled, like ~h but searches for STRING on the
                   server, rather than downloading each message and searching
                   it locally.  STRING must be of the form "header: substring"
       ~H EXPR     messages with spam tags matching EXPR
       ~i EXPR     messages which match EXPR in the "Message-ID" field
       ~k          messages containing PGP key material
       ~l          messages addressed to a known mailing list (defined by
                   either subscribe or list)
       ~L EXPR     messages either originated or received by EXPR
       %L GROUP    messages either originated or received by any member of
                   GROUP
       ~m MIN-MAX  message in the range MIN to MAX
       ~M EXPR     messages which contain a mime Content-Type matching EXPR
       ~n MIN-MAX  messages with a score in the range MIN to MAX
       ~N          new messages
       ~O          old messages
       ~p          messages addressed to you (as defined by alternates)
       ~P          messages from you (as defined by alternates)
       ~Q          messages which have been replied to
       ~r MIN-MAX  messages with "date-received" in a Date range
       ~R          read messages
       ~s EXPR     messages having EXPR in the "Subject" field.
       ~S          superseded messages
       ~t EXPR     messages addressed to EXPR
       ~T          tagged messages
       ~u          messages addressed to a subscribed mailing list (defined by
                   subscribe commands)
       ~U          unread messages
       ~v          message is part of a collapsed thread.
       ~V          cryptographically verified messages
       ~x EXPR     messages which contain EXPR in the "References" or "In-
                   Reply-To" field
       ~X MIN-MAX  messages with MIN - MAX attachments
       ~y EXPR     messages which contain EXPR in the "X-Label" field
       ~z MIN-MAX  messages with a size in the range MIN to MAX
       ~=          duplicated messages (see $duplicate_threads)
       ~$          unreferenced message (requires threaded view)
       ~(PATTERN)  messages in threads containing messages matching a certain
                   pattern, e.g. all threads containing messages from you:
                   ~(~P)
       ~<(PATTERN) messages whose immediate parent matches PATTERN, e.g.
                   replies to your messages: ~<(~P)
       ~>(PATTERN) messages having an immediate child matching PATTERN, e.g.
                   messages you replied to: ~>(~P)

       In the above, EXPR is a regular expression.

       With the ~d, ~m, ~n, ~r, ~X, and ~z operators, you can also specify
       ranges in the forms <MAX, >MIN, MIN-, and -MAX.

       With the ~z operator, the suffixes "K" and "M" are allowed to specify
       kilobyte and megabyte respectively.

       The ~b, ~B, ~h, ~M, and ~X operators require reading each message in,
       which can be much slower.

       You can force Mutt to treat EXPR as a simple string instead of a
       regular expression by using = instead of ~ in the pattern name.

   Matching dates
       The ~d and ~r operators are used to match date ranges, which are
       interpreted to be given in your local time zone.

       A date is of the form DD[/MM[/[cc]YY]], that is, a two-digit date,
       optionally followed by a two-digit month, optionally followed by a year
       specifications.  Omitted fields default to the current month and year.

       Mutt understands either two or four digit year specifications.  When
       given a two-digit year, mutt will interpret values less than 70 as
       lying in the 21st century (i.e., "38" means 2038 and not 1938, and "00"
       is interpreted as 2000), and values greater than or equal to 70 as
       lying in the 20th century.

       Note that this behavior is Y2K compliant, but that mutt does have a
       Y2.07K problem.

       If a date range consists of a single date, the operator in question
       will match that precise date.  If the date range consists of a dash
       ("-"), followed by a date, this range will match any date before and up
       to the date given.  Similarly, a date followed by a dash matches the
       date given and any later point of time.  Two dates, separated by a
       dash, match any date which lies in the given range of time.

       You can also modify any absolute date by giving an error range.  An
       error range consists of one of the characters +, -, *, followed by a
       positive number, followed by one of the unit characters y, m, w, or d,
       specifying a unit of years, months, weeks, or days.  + increases the
       maximum date matched by the given interval of time, - decreases the
       minimum date matched by the given interval of time, and * increases the
       maximum date and decreases the minimum date matched by the given
       interval of time.  It is possible to give multiple error margins, which
       cumulate.  Example: 1/1/2001-1w+2w*3d

       You can also specify offsets relative to the current date.  An offset
       is specified as one of the characters <, >, =, followed by a positive
       number, followed by one of the unit characters y, m, w, or d.  >
       matches dates which are older than the specified amount of time, an
       offset which begins with the character < matches dates which are more
       recent than the specified amount of time, and an offset which begins
       with the character = matches points of time which are precisely the
       given amount of time ago.


CONFIGURATION VARIABLES

       abort_noattach
              Type: quadoption
              Default: no

              When the body of the message matches $abort_noattach_regexp and
              there are no attachments, this quadoption controls whether to
              abort sending the message.

       abort_noattach_regexp
              Type: regular expression
              Default: "attach"

              Specifies a regular expression to match against the body of the
              message, to determine if an attachment was mentioned but
              mistakenly forgotten.  If it matches, $abort_noattach will be
              consulted to determine if message sending will be aborted.

              Like other regular expressions in Mutt, the search is case
              sensitive if the pattern contains at least one upper case
              letter, and case insensitive otherwise.

       abort_nosubject
              Type: quadoption
              Default: ask-yes

              If set to yes, when composing messages and no subject is given
              at the subject prompt, composition will be aborted.  If set to
              no, composing messages with no subject given at the subject
              prompt will never be aborted.

       abort_unmodified
              Type: quadoption
              Default: yes

              If set to yes, composition will automatically abort after
              editing the message body if no changes are made to the file
              (this check only happens after the first edit of the file).
              When set to no, composition will never be aborted.

       alias_file
              Type: path
              Default: "~/.muttrc"

              The default file in which to save aliases created by the
              <create-alias> function. Entries added to this file are encoded
              in the character set specified by $config_charset if it is set
              or the current character set otherwise.

              Note: Mutt will not automatically source this file; you must
              explicitly use the "source" command for it to be executed in
              case this option points to a dedicated alias file.

              The default for this option is the currently used muttrc file,
              or "~/.muttrc" if no user muttrc was found.

       alias_format
              Type: string
              Default: "%4n %2f %t %-10a   %r"

              Specifies the format of the data displayed for the "alias" menu.
              The following printf(3)-style sequences are available:
              %a     alias name
              %f     flags - currently, a "d" for an alias marked for deletion
              %n     index number
              %r     address which alias expands to
              %t     character which indicates if the alias is tagged for
                     inclusion

       allow_8bit
              Type: boolean
              Default: yes

              Controls whether 8-bit data is converted to 7-bit using either
              Quoted- Printable or Base64 encoding when sending mail.

       allow_ansi
              Type: boolean
              Default: no

              Controls whether ANSI color codes in messages (and color tags in
              rich text messages) are to be interpreted.  Messages containing
              these codes are rare, but if this option is set, their text will
              be colored accordingly. Note that this may override your color
              choices, and even present a security problem, since a message
              could include a line like

              [-- PGP output follows ...

              and give it the same color as your attachment color (see also
              $crypt_timestamp).

       arrow_cursor
              Type: boolean
              Default: no

              When set, an arrow ("->") will be used to indicate the current
              entry in menus instead of highlighting the whole line.  On slow
              network or modem links this will make response faster because
              there is less that has to be redrawn on the screen when moving
              to the next or previous entries in the menu.

       ascii_chars
              Type: boolean
              Default: no

              If set, Mutt will use plain ASCII characters when displaying
              thread and attachment trees, instead of the default ACS
              characters.

       askbcc
              Type: boolean
              Default: no

              If set, Mutt will prompt you for blind-carbon-copy (Bcc)
              recipients before editing an outgoing message.

       askcc
              Type: boolean
              Default: no

              If set, Mutt will prompt you for carbon-copy (Cc) recipients
              before editing the body of an outgoing message.

       assumed_charset
              Type: string
              Default: ""

              This variable is a colon-separated list of character encoding
              schemes for messages without character encoding indication.
              Header field values and message body content without character
              encoding indication would be assumed that they are written in
              one of this list.  By default, all the header fields and message
              body without any charset indication are assumed to be in
              "us-ascii".

              For example, Japanese users might prefer this:

              set assumed_charset="iso-2022-jp:euc-jp:shift_jis:utf-8"

              However, only the first content is valid for the message body.

       attach_charset
              Type: string
              Default: ""

              This variable is a colon-separated list of character encoding
              schemes for text file attachments. Mutt uses this setting to
              guess which encoding files being attached are encoded in to
              convert them to a proper character set given in $send_charset.

              If unset, the value of $charset will be used instead.  For
              example, the following configuration would work for Japanese
              text handling:

              set attach_charset="iso-2022-jp:euc-jp:shift_jis:utf-8"

              Note: for Japanese users, "iso-2022-*" must be put at the head
              of the value as shown above if included.

       attach_format
              Type: string
              Default: "%u%D%I %t%4n %T%.40d%> [%.7m/%.10M, %.6e%?C?, %C?, %s] "

              This variable describes the format of the "attachment" menu.
              The following printf(3)-style sequences are understood:
              %C     charset
              %c     requires charset conversion ("n" or "c")
              %D     deleted flag
              %d     description (if none, falls back to %F)
              %e     MIME content-transfer-encoding
              %F     filename in content-disposition header (if none, falls
                     back to %f)
              %f     filename
              %I     disposition ("I" for inline, "A" for attachment)
              %m     major MIME type
              %M     MIME subtype
              %n     attachment number
              %Q     "Q", if MIME part qualifies for attachment counting
              %s     size
              %t     tagged flag
              %T     graphic tree characters
              %u     unlink (=to delete) flag
              %X     number of qualifying MIME parts in this part and its
                     children (please see the "attachments" section for
                     possible speed effects)
              %>X    right justify the rest of the string and pad with
                     character "X"
              %|X    pad to the end of the line with character "X"
              %*X    soft-fill with character "X" as pad

              For an explanation of "soft-fill", see the $index_format
              documentation.

       attach_sep
              Type: string
              Default: "\n"

              The separator to add between attachments when operating (saving,
              printing, piping, etc) on a list of tagged attachments.

       attach_split
              Type: boolean
              Default: yes

              If this variable is unset, when operating (saving, printing,
              piping, etc) on a list of tagged attachments, Mutt will
              concatenate the attachments and will operate on them as a single
              attachment. The $attach_sep separator is added after each
              attachment. When set, Mutt will operate on the attachments one
              by one.


       attribution
              Type: string
              Default: "On %d, %n wrote:"

              This is the string that will precede a message which has been
              included in a reply.  For a full listing of defined
              printf(3)-like sequences see the section on $index_format.

       attribution_locale
              Type: string
              Default: ""

              The locale used by strftime(3) to format dates in the
              attribution string.  Legal values are the strings your system
              accepts for the locale environment variable $LC_TIME.

              This variable is to allow the attribution date format to be
              customized by recipient or folder using hooks.  By default, Mutt
              will use your locale environment, so there is no need to set
              this except to override that default.

       auto_tag
              Type: boolean
              Default: no

              When set, functions in the index menu which affect a message
              will be applied to all tagged messages (if there are any).  When
              unset, you must first use the <tag-prefix> function (bound to
              ";" by default) to make the next function apply to all tagged
              messages.

       autoedit
              Type: boolean
              Default: no

              When set along with $edit_headers, Mutt will skip the initial
              send-menu (prompting for subject and recipients) and allow you
              to immediately begin editing the body of your message.  The
              send-menu may still be accessed once you have finished editing
              the body of your message.

              Note: when this option is set, you cannot use send-hooks that
              depend on the recipients when composing a new (non-reply)
              message, as the initial list of recipients is empty.

              Also see $fast_reply.

       beep
              Type: boolean
              Default: yes

              When this variable is set, mutt will beep when an error occurs.

       beep_new
              Type: boolean
              Default: no

              When this variable is set, mutt will beep whenever it prints a
              message notifying you of new mail.  This is independent of the
              setting of the $beep variable.

       bounce
              Type: quadoption
              Default: ask-yes

              Controls whether you will be asked to confirm bouncing messages.
              If set to yes you don't get asked if you want to bounce a
              message. Setting this variable to no is not generally useful,
              and thus not recommended, because you are unable to bounce
              messages.

       bounce_delivered
              Type: boolean
              Default: yes

              When this variable is set, mutt will include Delivered-To
              headers when bouncing messages.  Postfix users may wish to unset
              this variable.

       braille_friendly
              Type: boolean
              Default: no

              When this variable is set, mutt will place the cursor at the
              beginning of the current line in menus, even when the
              $arrow_cursor variable is unset, making it easier for blind
              persons using Braille displays to follow these menus.  The
              option is unset by default because many visual terminals don't
              permit making the cursor invisible.

       browser_abbreviate_mailboxes
              Type: boolean
              Default: yes

              When this variable is set, mutt will abbreviate mailbox names in
              the browser mailbox list, using '~' and '=' shortcuts.

              The default "alpha" setting of $sort_browser uses locale-based
              sorting (using strcoll(3)), which ignores some punctuation.
              This can lead to some situations where the order doesn't make
              intuitive sense.  In those cases, it may be desirable to unset
              this variable.

       certificate_file
              Type: path
              Default: "~/.mutt_certificates"

              This variable specifies the file where the certificates you
              trust are saved. When an unknown certificate is encountered, you
              are asked if you accept it or not. If you accept it, the
              certificate can also be saved in this file and further
              connections are automatically accepted.

              You can also manually add CA certificates in this file. Any
              server certificate that is signed with one of these CA
              certificates is also automatically accepted.

              Example:

              set certificate_file=~/.mutt/certificates

       change_folder_next
              Type: boolean
              Default: no

              When this variable is set, the <change-folder> function mailbox
              suggestion will start at the next folder in your "mailboxes"
              list, instead of starting at the first folder in the list.

       charset
              Type: string
              Default: ""

              Character set your terminal uses to display and enter textual
              data.  It is also the fallback for $send_charset.

              Upon startup Mutt tries to derive this value from environment
              variables such as $LC_CTYPE or $LANG.

              Note: It should only be set in case Mutt isn't able to determine
              the character set used correctly.

       check_mbox_size
              Type: boolean
              Default: no

              When this variable is set, mutt will use file size attribute
              instead of access time when checking for new mail in mbox and
              mmdf folders.

              This variable is unset by default and should only be enabled
              when new mail detection for these folder types is unreliable or
              doesn't work.

              Note that enabling this variable should happen before any
              "mailboxes" directives occur in configuration files regarding
              mbox or mmdf folders because mutt needs to determine the initial
              new mail status of such a mailbox by performing a fast mailbox
              scan when it is defined.  Afterwards the new mail status is
              tracked by file size changes.

       check_new
              Type: boolean
              Default: yes

              Note: this option only affects maildir and MH style mailboxes.

              When set, Mutt will check for new mail delivered while the
              mailbox is open.  Especially with MH mailboxes, this operation
              can take quite some time since it involves scanning the
              directory and checking each file to see if it has already been
              looked at.  If this variable is unset, no check for new mail is
              performed while the mailbox is open.

       collapse_unread
              Type: boolean
              Default: yes

              When unset, Mutt will not collapse a thread if it contains any
              unread messages.

       compose_format
              Type: string
              Default: "-- Mutt: Compose  [Approx. msg size: %l   Atts: %a]%>-"

              Controls the format of the status line displayed in the
              "compose" menu.  This string is similar to $status_format, but
              has its own set of printf(3)-like sequences:
              %a     total number of attachments
              %h     local hostname
              %l     approximate size (in bytes) of the current message
              %v     Mutt version string

              See the text describing the $status_format option for more
              information on how to set $compose_format.

       config_charset
              Type: string
              Default: ""

              When defined, Mutt will recode commands in rc files from this
              encoding to the current character set as specified by $charset
              and aliases written to $alias_file from the current character
              set.

              Please note that if setting $charset it must be done before
              setting $config_charset.

              Recoding should be avoided as it may render unconvertable
              characters as question marks which can lead to undesired side
              effects (for example in regular expressions).

       confirmappend
              Type: boolean
              Default: yes

              When set, Mutt will prompt for confirmation when appending
              messages to an existing mailbox.

       confirmcreate
              Type: boolean
              Default: yes

              When set, Mutt will prompt for confirmation when saving messages
              to a mailbox which does not yet exist before creating it.

       connect_timeout
              Type: number
              Default: 30

              Causes Mutt to timeout a network connection (for IMAP, POP or
              SMTP) after this many seconds if the connection is not able to
              be established.  A negative value causes Mutt to wait
              indefinitely for the connection attempt to succeed.

       content_type
              Type: string
              Default: "text/plain"

              Sets the default Content-Type for the body of newly composed
              messages.

       copy
              Type: quadoption
              Default: yes

              This variable controls whether or not copies of your outgoing
              messages will be saved for later references.  Also see $record,
              $save_name, $force_name and "fcc-hook".

       crypt_autoencrypt
              Type: boolean
              Default: no

              Setting this variable will cause Mutt to always attempt to PGP
              encrypt outgoing messages.  This is probably only useful in
              connection to the "send-hook" command.  It can be overridden by
              use of the pgp menu, when encryption is not required or signing
              is requested as well.  If $smime_is_default is set, then OpenSSL
              is used instead to create S/MIME messages and settings can be
              overridden by use of the smime menu instead.  (Crypto only)

       crypt_autopgp
              Type: boolean
              Default: yes

              This variable controls whether or not mutt may automatically
              enable PGP encryption/signing for messages.  See also
              $crypt_autoencrypt, $crypt_replyencrypt, $crypt_autosign,
              $crypt_replysign and $smime_is_default.

       crypt_autosign
              Type: boolean
              Default: no

              Setting this variable will cause Mutt to always attempt to
              cryptographically sign outgoing messages.  This can be
              overridden by use of the pgp menu, when signing is not required
              or encryption is requested as well. If $smime_is_default is set,
              then OpenSSL is used instead to create S/MIME messages and
              settings can be overridden by use of the smime menu instead of
              the pgp menu.  (Crypto only)

       crypt_autosmime
              Type: boolean
              Default: yes

              This variable controls whether or not mutt may automatically
              enable S/MIME encryption/signing for messages. See also
              $crypt_autoencrypt, $crypt_replyencrypt, $crypt_autosign,
              $crypt_replysign and $smime_is_default.

       crypt_confirmhook
              Type: boolean
              Default: yes

              If set, then you will be prompted for confirmation of keys when
              using the crypt-hook command.  If unset, no such confirmation
              prompt will be presented.  This is generally considered unsafe,
              especially where typos are concerned.

       crypt_opportunistic_encrypt
              Type: boolean
              Default: no

              Setting this variable will cause Mutt to automatically enable
              and disable encryption, based on whether all message recipient
              keys can be located by Mutt.

              When this option is enabled, Mutt will enable/disable encryption
              each time the TO, CC, and BCC lists are edited.  If
              $edit_headers is set, Mutt will also do so each time the message
              is edited.

              While this is set, encryption can't be manually
              enabled/disabled.  The pgp or smime menus provide a selection to
              temporarily disable this option for the current message.

              If $crypt_autoencrypt or $crypt_replyencrypt enable encryption
              for a message, this option will be disabled for that message.
              It can be manually re-enabled in the pgp or smime menus.
              (Crypto only)

       crypt_replyencrypt
              Type: boolean
              Default: yes

              If set, automatically PGP or OpenSSL encrypt replies to messages
              which are encrypted.  (Crypto only)

       crypt_replysign
              Type: boolean
              Default: no

              If set, automatically PGP or OpenSSL sign replies to messages
              which are signed.

              Note: this does not work on messages that are encrypted and
              signed!  (Crypto only)

       crypt_replysignencrypted
              Type: boolean
              Default: no

              If set, automatically PGP or OpenSSL sign replies to messages
              which are encrypted. This makes sense in combination with
              $crypt_replyencrypt, because it allows you to sign all messages
              which are automatically encrypted.  This works around the
              problem noted in $crypt_replysign, that mutt is not able to find
              out whether an encrypted message is also signed.  (Crypto only)

       crypt_timestamp
              Type: boolean
              Default: yes

              If set, mutt will include a time stamp in the lines surrounding
              PGP or S/MIME output, so spoofing such lines is more difficult.
              If you are using colors to mark these lines, and rely on these,
              you may unset this setting.  (Crypto only)

       crypt_use_gpgme
              Type: boolean
              Default: no

              This variable controls the use of the GPGME-enabled crypto
              backends.  If it is set and Mutt was built with gpgme support,
              the gpgme code for S/MIME and PGP will be used instead of the
              classic code.  Note that you need to set this option in .muttrc;
              it won't have any effect when used interactively.

              Note that the GPGME backend does not support creating old-style
              inline (traditional) PGP encrypted or signed messages (see
              $pgp_autoinline).

       crypt_use_pka
              Type: boolean
              Default: no

              Controls whether mutt uses PKA (see
              http://www.g10code.de/docs/pka-intro.de.pdf) during signature
              verification (only supported by the GPGME backend).

       crypt_verify_sig
              Type: quadoption
              Default: yes

              If "yes", always attempt to verify PGP or S/MIME signatures.  If
              "ask-*", ask whether or not to verify the signature.  If "no",
              never attempt to verify cryptographic signatures.  (Crypto only)

       date_format
              Type: string
              Default: "!%a, %b %d, %Y at %I:%M:%S%p %Z"

              This variable controls the format of the date printed by the
              "%d" sequence in $index_format.  This is passed to the
              strftime(3) function to process the date, see the man page for
              the proper syntax.

              Unless the first character in the string is a bang ("!"), the
              month and week day names are expanded according to the locale.
              If the first character in the string is a bang, the bang is
              discarded, and the month and week day names in the rest of the
              string are expanded in the C locale (that is in US English).

       default_hook
              Type: string
              Default: "~f %s !~P | (~P ~C %s)"

              This variable controls how "message-hook", "reply-hook", "send-
              hook", "send2-hook", "save-hook", and "fcc-hook" will be
              interpreted if they are specified with only a simple regexp,
              instead of a matching pattern.  The hooks are expanded when they
              are declared, so a hook will be interpreted according to the
              value of this variable at the time the hook is declared.

              The default value matches if the message is either from a user
              matching the regular expression given, or if it is from you (if
              the from address matches "alternates") and is to or cc'ed to a
              user matching the given regular expression.

       delete
              Type: quadoption
              Default: ask-yes

              Controls whether or not messages are really deleted when closing
              or synchronizing a mailbox.  If set to yes, messages marked for
              deleting will automatically be purged without prompting.  If set
              to no, messages marked for deletion will be kept in the mailbox.

       delete_untag
              Type: boolean
              Default: yes

              If this option is set, mutt will untag messages when marking
              them for deletion.  This applies when you either explicitly
              delete a message, or when you save it to another folder.

       digest_collapse
              Type: boolean
              Default: yes

              If this option is set, mutt's received-attachments menu will not
              show the subparts of individual messages in a multipart/digest.
              To see these subparts, press "v" on that menu.

       display_filter
              Type: path
              Default: ""

              When set, specifies a command used to filter messages.  When a
              message is viewed it is passed as standard input to
              $display_filter, and the filtered message is read from the
              standard output.

       dotlock_program
              Type: path
              Default: "/usr/local/bin/mutt_dotlock"

              Contains the path of the mutt_dotlock(8) binary to be used by
              mutt.

       dsn_notify
              Type: string
              Default: ""

              This variable sets the request for when notification is
              returned.  The string consists of a comma separated list (no
              spaces!) of one or more of the following: never, to never
              request notification, failure, to request notification on
              transmission failure, delay, to be notified of message delays,
              success, to be notified of successful transmission.

              Example:

              set dsn_notify="failure,delay"

              Note: when using $sendmail for delivery, you should not enable
              this unless you are either using Sendmail 8.8.x or greater or a
              MTA providing a sendmail(1)-compatible interface supporting the
              -N option for DSN. For SMTP delivery, DSN support is
              auto-detected so that it depends on the server whether DSN will
              be used or not.

       dsn_return
              Type: string
              Default: ""

              This variable controls how much of your message is returned in
              DSN messages.  It may be set to either hdrs to return just the
              message header, or full to return the full message.

              Example:

              set dsn_return=hdrs

              Note: when using $sendmail for delivery, you should not enable
              this unless you are either using Sendmail 8.8.x or greater or a
              MTA providing a sendmail(1)-compatible interface supporting the
              -R option for DSN. For SMTP delivery, DSN support is
              auto-detected so that it depends on the server whether DSN will
              be used or not.

       duplicate_threads
              Type: boolean
              Default: yes

              This variable controls whether mutt, when $sort is set to
              threads, threads messages with the same Message-Id together.  If
              it is set, it will indicate that it thinks they are duplicates
              of each other with an equals sign in the thread tree.

       edit_headers
              Type: boolean
              Default: no

              This option allows you to edit the header of your outgoing
              messages along with the body of your message.

              Although the compose menu may have localized header labels, the
              labels passed to your editor will be standard RFC 2822 headers,
              (e.g. To:, Cc:, Subject:).  Headers added in your editor must
              also be RFC 2822 headers, or one of the pseudo headers listed in
              "edit-header".  Mutt will not understand localized header
              labels, just as it would not when parsing an actual email.

              Note that changes made to the References: and Date: headers are
              ignored for interoperability reasons.

       editor
              Type: path
              Default: ""

              This variable specifies which editor is used by mutt.  It
              defaults to the value of the $VISUAL, or $EDITOR, environment
              variable, or to the string "vi" if neither of those are set.

              The $editor string may contain a %s escape, which will be
              replaced by the name of the file to be edited.  If the %s escape
              does not appear in $editor, a space and the name to be edited
              are appended.

              The resulting string is then executed by running

              sh -c 'string'

              where string is the expansion of $editor described above.

       encode_from
              Type: boolean
              Default: no

              When set, mutt will quoted-printable encode messages when they
              contain the string "From " (note the trailing space) in the
              beginning of a line.  This is useful to avoid the tampering
              certain mail delivery and transport agents tend to do with
              messages (in order to prevent tools from misinterpreting the
              line as a mbox message separator).

       entropy_file
              Type: path
              Default: ""

              The file which includes random data that is used to initialize
              SSL library functions.

       envelope_from_address
              Type: e-mail address
              Default: ""

              Manually sets the envelope sender for outgoing messages.  This
              value is ignored if $use_envelope_from is unset.

       error_history
              Type: number
              Default: 30

              This variable controls the size (in number of strings
              remembered) of the error messages displayed by mutt.  These can
              be shown with the <error-history> function.  The history is
              cleared each time this variable is set.

       escape
              Type: string
              Default: "~"

              Escape character to use for functions in the built-in editor.

       fast_reply
              Type: boolean
              Default: no

              When set, the initial prompt for recipients and subject are
              skipped when replying to messages, and the initial prompt for
              subject is skipped when forwarding messages.

              Note: this variable has no effect when the $autoedit variable is
              set.

       fcc_attach
              Type: quadoption
              Default: yes

              This variable controls whether or not attachments on outgoing
              messages are saved along with the main body of your message.

       fcc_clear
              Type: boolean
              Default: no

              When this variable is set, FCCs will be stored unencrypted and
              unsigned, even when the actual message is encrypted and/or
              signed.  (PGP only)

       flag_safe
              Type: boolean
              Default: no

              If set, flagged messages cannot be deleted.

       folder
              Type: path
              Default: "~/Mail"

              Specifies the default location of your mailboxes.  A "+" or "="
              at the beginning of a pathname will be expanded to the value of
              this variable.  Note that if you change this variable (from the
              default) value you need to make sure that the assignment occurs
              before you use "+" or "=" for any other variables since
              expansion takes place when handling the "mailboxes" command.

       folder_format
              Type: string
              Default: "%2C %t %N %F %2l %-8.8u %-8.8g %8s %d %f"

              This variable allows you to customize the file browser display
              to your personal taste.  This string is similar to
              $index_format, but has its own set of printf(3)-like sequences:
              %C     current file number
              %d     date/time folder was last modified
              %D     date/time folder was last modified using $date_format.
              %f     filename ("/" is appended to directory names, "@" to
                     symbolic links and "*" to executable files)
              %F     file permissions
              %g     group name (or numeric gid, if missing)
              %l     number of hard links
              %m     number of messages in the mailbox *
              %n     number of unread messages in the mailbox *
              %N     N if mailbox has new mail, blank otherwise
              %s     size in bytes
              %t     "*" if the file is tagged, blank otherwise
              %u     owner name (or numeric uid, if missing)
              %>X    right justify the rest of the string and pad with
                     character "X"
              %|X    pad to the end of the line with character "X"
              %*X    soft-fill with character "X" as pad

              For an explanation of "soft-fill", see the $index_format
              documentation.

              * = can be optionally printed if nonzero

              %m, %n, and %N only work for monitored mailboxes.  %m requires
              $mail_check_stats to be set.  %n requires $mail_check_stats to
              be set (except for IMAP mailboxes).


       followup_to
              Type: boolean
              Default: yes

              Controls whether or not the "Mail-Followup-To:" header field is
              generated when sending mail.  When set, Mutt will generate this
              field when you are replying to a known mailing list, specified
              with the "subscribe" or "lists" commands.

              This field has two purposes.  First, preventing you from
              receiving duplicate copies of replies to messages which you send
              to mailing lists, and second, ensuring that you do get a reply
              separately for any messages sent to known lists to which you are
              not subscribed.

              The header will contain only the list's address for subscribed
              lists, and both the list address and your own email address for
              unsubscribed lists.  Without this header, a group reply to your
              message sent to a subscribed list will be sent to both the list
              and your address, resulting in two copies of the same email for
              you.

       force_name
              Type: boolean
              Default: no

              This variable is similar to $save_name, except that Mutt will
              store a copy of your outgoing message by the username of the
              address you are sending to even if that mailbox does not exist.

              Also see the $record variable.

       forward_attribution_intro
              Type: string
              Default: "----- Forwarded message from %f -----"

              This is the string that will precede a message which has been
              forwarded in the main body of a message (when $mime_forward is
              unset).  For a full listing of defined printf(3)-like sequences
              see the section on $index_format.  See also $attribution_locale.

       forward_attribution_trailer
              Type: string
              Default: "----- End forwarded message -----"

              This is the string that will follow a message which has been
              forwarded in the main body of a message (when $mime_forward is
              unset).  For a full listing of defined printf(3)-like sequences
              see the section on $index_format.  See also $attribution_locale.

       forward_decode
              Type: boolean
              Default: yes

              Controls the decoding of complex MIME messages into text/plain
              when forwarding a message.  The message header is also RFC2047
              decoded.  This variable is only used, if $mime_forward is unset,
              otherwise $mime_forward_decode is used instead.

       forward_decrypt
              Type: boolean
              Default: yes

              Controls the handling of encrypted messages when forwarding a
              message.  When set, the outer layer of encryption is stripped
              off.  This variable is only used if $mime_forward is set and
              $mime_forward_decode is unset.  (PGP only)

       forward_edit
              Type: quadoption
              Default: yes

              This quadoption controls whether or not the user is
              automatically placed in the editor when forwarding messages.
              For those who always want to forward with no modification, use a
              setting of "no".

       forward_format
              Type: string
              Default: "[%a: %s]"

              This variable controls the default subject when forwarding a
              message.  It uses the same format sequences as the $index_format
              variable.

       forward_quote
              Type: boolean
              Default: no

              When set, forwarded messages included in the main body of the
              message (when $mime_forward is unset) will be quoted using
              $indent_string.

       from
              Type: e-mail address
              Default: ""

              When set, this variable contains a default from address.  It can
              be overridden using "my_hdr" (including from a "send-hook") and
              $reverse_name.  This variable is ignored if $use_from is unset.

              This setting defaults to the contents of the environment
              variable $EMAIL.

       gecos_mask
              Type: regular expression
              Default: "^[^,]*"

              A regular expression used by mutt to parse the GECOS field of a
              password entry when expanding the alias.  The default value will
              return the string up to the first "," encountered.  If the GECOS
              field contains a string like "lastname, firstname" then you
              should set it to ".*".

              This can be useful if you see the following behavior: you
              address an e-mail to user ID "stevef" whose full name is "Steve
              Franklin".  If mutt expands "stevef" to ""Franklin"
              stevef@foo.bar" then you should set the $gecos_mask to a regular
              expression that will match the whole name so mutt will expand
              "Franklin" to "Franklin, Steve".

       hdrs
              Type: boolean
              Default: yes

              When unset, the header fields normally added by the "my_hdr"
              command are not created.  This variable must be unset before
              composing a new message or replying in order to take effect.  If
              set, the user defined header fields are added to every new
              message.

       header
              Type: boolean
              Default: no

              When set, this variable causes Mutt to include the header of the
              message you are replying to into the edit buffer.  The $weed
              setting applies.

       header_cache
              Type: path
              Default: ""

              This variable points to the header cache database.  If pointing
              to a directory Mutt will contain a header cache database file
              per folder, if pointing to a file that file will be a single
              global header cache. By default it is unset so no header caching
              will be used.

              Header caching can greatly improve speed when opening POP, IMAP
              MH or Maildir folders, see "caching" for details.

       header_cache_compress
              Type: boolean
              Default: yes

              When mutt is compiled with qdbm, tokyocabinet, or kyotocabinet
              as header cache backend, this option determines whether the
              database will be compressed.  Compression results in database
              files roughly being one fifth of the usual diskspace, but the
              decompression can result in a slower opening of cached folder(s)
              which in general is still much faster than opening non header
              cached folders.

       header_cache_pagesize
              Type: string
              Default: "16384"

              When mutt is compiled with either gdbm or bdb4 as the header
              cache backend, this option changes the database page size.  Too
              large or too small values can waste space, memory, or CPU time.
              The default should be more or less optimal for most use cases.

       header_color_partial
              Type: boolean
              Default: no

              When set, color header regexps behave like color body regexps:
              color is applied to the exact text matched by the regexp.  When
              unset, color is applied to the entire header.

              One use of this option might be to apply color to just the
              header labels.

              See "color" for more details.

       help
              Type: boolean
              Default: yes

              When set, help lines describing the bindings for the major
              functions provided by each menu are displayed on the first line
              of the screen.

              Note: The binding will not be displayed correctly if the
              function is bound to a sequence rather than a single keystroke.
              Also, the help line may not be updated if a binding is changed
              while Mutt is running.  Since this variable is primarily aimed
              at new users, neither of these should present a major problem.

       hidden_host
              Type: boolean
              Default: no

              When set, mutt will skip the host name part of $hostname
              variable when adding the domain part to addresses.  This
              variable does not affect the generation of Message-IDs, and it
              will not lead to the cut-off of first-level domains.

       hide_limited
              Type: boolean
              Default: no

              When set, mutt will not show the presence of messages that are
              hidden by limiting, in the thread tree.

       hide_missing
              Type: boolean
              Default: yes

              When set, mutt will not show the presence of missing messages in
              the thread tree.

       hide_thread_subject
              Type: boolean
              Default: yes

              When set, mutt will not show the subject of messages in the
              thread tree that have the same subject as their parent or
              closest previously displayed sibling.

       hide_top_limited
              Type: boolean
              Default: no

              When set, mutt will not show the presence of messages that are
              hidden by limiting, at the top of threads in the thread tree.
              Note that when $hide_limited is set, this option will have no
              effect.

       hide_top_missing
              Type: boolean
              Default: yes

              When set, mutt will not show the presence of missing messages at
              the top of threads in the thread tree.  Note that when
              $hide_missing is set, this option will have no effect.

       history
              Type: number
              Default: 10

              This variable controls the size (in number of strings
              remembered) of the string history buffer per category. The
              buffer is cleared each time the variable is set.

       history_file
              Type: path
              Default: "~/.mutthistory"

              The file in which Mutt will save its history.

              Also see $save_history.

       history_remove_dups
              Type: boolean
              Default: no

              When set, all of the string history will be scanned for
              duplicates when a new entry is added.  Duplicate entries in the
              $history_file will also be removed when it is periodically
              compacted.

       honor_disposition
              Type: boolean
              Default: no

              When set, Mutt will not display attachments with a disposition
              of "attachment" inline even if it could render the part to plain
              text. These MIME parts can only be viewed from the attachment
              menu.

              If unset, Mutt will render all MIME parts it can properly
              transform to plain text.

       honor_followup_to
              Type: quadoption
              Default: yes

              This variable controls whether or not a Mail-Followup-To header
              is honored when group-replying to a message.

       hostname
              Type: string
              Default: ""

              Specifies the fully-qualified hostname of the system mutt is
              running on containing the host's name and the DNS domain it
              belongs to. It is used as the domain part (after "@") for local
              email addresses as well as Message-Id headers.

              Its value is determined at startup as follows: the node's
              hostname is first determined by the uname(3) function.  The
              domain is then looked up using the gethostname(2) and
              getaddrinfo(3) functions.  If those calls are unable to
              determine the domain, the full value returned by uname is used.
              Optionally, Mutt can be compiled with a fixed domain name in
              which case a detected one is not used.

              Also see $use_domain and $hidden_host.

       idn_decode
              Type: boolean
              Default: yes

              When set, Mutt will show you international domain names decoded.
              Note: You can use IDNs for addresses even if this is unset.
              This variable only affects decoding. (IDN only)

       idn_encode
              Type: boolean
              Default: yes

              When set, Mutt will encode international domain names using IDN.
              Unset this if your SMTP server can handle newer (RFC 6531) UTF-8
              encoded domains. (IDN only)

       ignore_linear_white_space
              Type: boolean
              Default: no

              This option replaces linear-white-space between encoded-word and
              text to a single space to prevent the display of MIME-encoded
              "Subject:" field from being divided into multiple lines.

       ignore_list_reply_to
              Type: boolean
              Default: no

              Affects the behavior of the <reply> function when replying to
              messages from mailing lists (as defined by the "subscribe" or
              "lists" commands).  When set, if the "Reply-To:" field is set to
              the same value as the "To:" field, Mutt assumes that the
              "Reply-To:" field was set by the mailing list to automate
              responses to the list, and will ignore this field.  To direct a
              response to the mailing list when this option is set, use the
              <list-reply> function; <group-reply> will reply to both the
              sender and the list.

       imap_authenticators
              Type: string
              Default: ""

              This is a colon-delimited list of authentication methods mutt
              may attempt to use to log in to an IMAP server, in the order
              mutt should try them.  Authentication methods are either "login"
              or the right side of an IMAP "AUTH=xxx" capability string, e.g.
              "digest-md5", "gssapi" or "cram-md5". This option is
              case-insensitive. If it's unset (the default) mutt will try all
              available methods, in order from most-secure to least-secure.

              Example:

              set imap_authenticators="gssapi:cram-md5:login"

              Note: Mutt will only fall back to other authentication methods
              if the previous methods are unavailable. If a method is
              available but authentication fails, mutt will not connect to the
              IMAP server.

       imap_check_subscribed
              Type: boolean
              Default: no

              When set, mutt will fetch the set of subscribed folders from
              your server on connection, and add them to the set of mailboxes
              it polls for new mail just as if you had issued individual
              "mailboxes" commands.

       imap_delim_chars
              Type: string
              Default: "/."

              This contains the list of characters which you would like to
              treat as folder separators for displaying IMAP paths. In
              particular it helps in using the "=" shortcut for your folder
              variable.

       imap_headers
              Type: string
              Default: ""

              Mutt requests these header fields in addition to the default
              headers ("Date:", "From:", "Subject:", "To:", "Cc:",
              "Message-Id:", "References:", "Content-Type:",
              "Content-Description:", "In-Reply-To:", "Reply-To:", "Lines:",
              "List-Post:", "X-Label:") from IMAP servers before displaying
              the index menu. You may want to add more headers for spam
              detection.

              Note: This is a space separated list, items should be uppercase
              and not contain the colon, e.g. "X-BOGOSITY X-SPAM-STATUS" for
              the "X-Bogosity:" and "X-Spam-Status:" header fields.

       imap_idle
              Type: boolean
              Default: no

              When set, mutt will attempt to use the IMAP IDLE extension to
              check for new mail in the current mailbox. Some servers (dovecot
              was the inspiration for this option) react badly to mutt's
              implementation. If your connection seems to freeze up
              periodically, try unsetting this.

       imap_keepalive
              Type: number
              Default: 300

              This variable specifies the maximum amount of time in seconds
              that mutt will wait before polling open IMAP connections, to
              prevent the server from closing them before mutt has finished
              with them. The default is well within the RFC-specified minimum
              amount of time (30 minutes) before a server is allowed to do
              this, but in practice the RFC does get violated every now and
              then. Reduce this number if you find yourself getting
              disconnected from your IMAP server due to inactivity.

       imap_list_subscribed
              Type: boolean
              Default: no

              This variable configures whether IMAP folder browsing will look
              for only subscribed folders or all folders.  This can be toggled
              in the IMAP browser with the <toggle-subscribed> function.

       imap_login
              Type: string
              Default: ""

              Your login name on the IMAP server.

              This variable defaults to the value of $imap_user.

       imap_pass
              Type: string
              Default: ""

              Specifies the password for your IMAP account.  If unset, Mutt
              will prompt you for your password when you invoke the
              <imap-fetch-mail> function or try to open an IMAP folder.

              Warning: you should only use this option when you are on a
              fairly secure machine, because the superuser can read your
              muttrc even if you are the only one who can read the file.

       imap_passive
              Type: boolean
              Default: yes

              When set, mutt will not open new IMAP connections to check for
              new mail.  Mutt will only check for new mail over existing IMAP
              connections.  This is useful if you don't want to be prompted to
              user/password pairs on mutt invocation, or if opening the
              connection is slow.

       imap_peek
              Type: boolean
              Default: yes

              When set, mutt will avoid implicitly marking your mail as read
              whenever you fetch a message from the server. This is generally
              a good thing, but can make closing an IMAP folder somewhat
              slower. This option exists to appease speed freaks.

       imap_pipeline_depth
              Type: number
              Default: 15

              Controls the number of IMAP commands that may be queued up
              before they are sent to the server. A deeper pipeline reduces
              the amount of time mutt must wait for the server, and can make
              IMAP servers feel much more responsive. But not all servers
              correctly handle pipelined commands, so if you have problems you
              might want to try setting this variable to 0.

              Note: Changes to this variable have no effect on open
              connections.

       imap_poll_timeout
              Type: number
              Default: 15

              This variable specifies the maximum amount of time in seconds
              that mutt will wait for a response when polling IMAP connections
              for new mail, before timing out and closing the connection.  Set
              to 0 to disable timing out.


       imap_servernoise
              Type: boolean
              Default: yes

              When set, mutt will display warning messages from the IMAP
              server as error messages. Since these messages are often
              harmless, or generated due to configuration problems on the
              server which are out of the users' hands, you may wish to
              suppress them at some point.

       imap_user
              Type: string
              Default: ""

              The name of the user whose mail you intend to access on the IMAP
              server.

              This variable defaults to your user name on the local machine.

       implicit_autoview
              Type: boolean
              Default: no

              If set to "yes", mutt will look for a mailcap entry with the
              "copiousoutput" flag set for every MIME attachment it doesn't
              have an internal viewer defined for.  If such an entry is found,
              mutt will use the viewer defined in that entry to convert the
              body part to text form.

       include
              Type: quadoption
              Default: ask-yes

              Controls whether or not a copy of the message(s) you are
              replying to is included in your reply.

       include_onlyfirst
              Type: boolean
              Default: no

              Controls whether or not Mutt includes only the first attachment
              of the message you are replying.

       indent_string
              Type: string
              Default: "> "

              Specifies the string to prepend to each line of text quoted in a
              message to which you are replying.  You are strongly encouraged
              not to change this value, as it tends to agitate the more
              fanatical netizens.

              The value of this option is ignored if $text_flowed is set,
              because the quoting mechanism is strictly defined for
              format=flowed.

              This option is a format string, please see the description of
              $index_format for supported printf(3)-style sequences.

       index_format
              Type: string
              Default: "%4C %Z %{%b %d} %-15.15L (%?l?%4l&%4c?) %s"

              This variable allows you to customize the message index display
              to your personal taste.

              "Format strings" are similar to the strings used in the C
              function printf(3) to format output (see the man page for more
              details).  For an explanation of the %? construct, see the
              $status_format description.  The following sequences are defined
              in Mutt:
              %a     address of the author
              %A     reply-to address (if present; otherwise: address of
                     author)
              %b     filename of the original message folder (think mailbox)
              %B     the list to which the letter was sent, or else the folder
                     name (%b).
              %c     number of characters (bytes) in the message
              %C     current message number
              %d     date and time of the message in the format specified by
                     $date_format converted to sender's time zone
              %D     date and time of the message in the format specified by
                     $date_format converted to the local time zone
              %e     current message number in thread
              %E     number of messages in current thread
              %f     sender (address + real name), either From: or
                     Return-Path:
              %F     author name, or recipient name if the message is from you
              %H     spam attribute(s) of this message
              %i     message-id of the current message
              %l     number of lines in the message (does not work with
                     maildir, mh, and possibly IMAP folders)
              %L     If an address in the "To:" or "Cc:" header field matches
                     an address defined by the users "subscribe" command, this
                     displays "To <list-name>", otherwise the same as %F.
              %m     total number of message in the mailbox
              %M     number of hidden messages if the thread is collapsed.
              %N     message score
              %n     author's real name (or address if missing)
              %O     original save folder where mutt would formerly have
                     stashed the message: list name or recipient name if not
                     sent to a list
              %P     progress indicator for the built-in pager (how much of
                     the file has been displayed)
              %r     comma separated list of "To:" recipients
              %R     comma separated list of "Cc:" recipients
              %s     subject of the message
              %S     single character status of the message
                     ("N"/"O"/"D"/"d"/"!"/"r"/"*")
              %t     "To:" field (recipients)
              %T     the appropriate character from the $to_chars string
              %u     user (login) name of the author
              %v     first name of the author, or the recipient if the message
                     is from you
              %X     number of attachments (please see the "attachments"
                     section for possible speed effects)
              %y     "X-Label:" field, if present
              %Y     "X-Label:" field, if present, and (1) not at part of a
                     thread tree, (2) at the top of a thread, or (3)
                     "X-Label:" is different from preceding message's
                     "X-Label:".
              %Z     a three character set of message status flags.  the first
                     character is new/read/replied flags
                     ("n"/"o"/"r"/"O"/"N").  the second is deleted or
                     encryption flags ("D"/"d"/"S"/"P"/"s"/"K").  the third is
                     either tagged/flagged ("*"/"!"), or one of the characters
                     listed in $to_chars.
              %{fmt} the date and time of the message is converted to sender's
                     time zone, and "fmt" is expanded by the library function
                     strftime(3); a leading bang disables locales
              %[fmt] the date and time of the message is converted to the
                     local time zone, and "fmt" is expanded by the library
                     function strftime(3); a leading bang disables locales
              %(fmt) the local date and time when the message was received.
                     "fmt" is expanded by the library function strftime(3); a
                     leading bang disables locales
              %<fmt> the current local time. "fmt" is expanded by the library
                     function strftime(3); a leading bang disables locales.
              %>X    right justify the rest of the string and pad with
                     character "X"
              %|X    pad to the end of the line with character "X"
              %*X    soft-fill with character "X" as pad

              "Soft-fill" deserves some explanation: Normal
              right-justification will print everything to the left of the
              "%>", displaying padding and whatever lies to the right only if
              there's room. By contrast, soft-fill gives priority to the
              right-hand side, guaranteeing space to display it and showing
              padding only if there's still room. If necessary, soft-fill will
              eat text leftwards to make room for rightward text.

              Note that these expandos are supported in "save-hook", "fcc-
              hook" and "fcc-save-hook", too.

       ispell
              Type: path
              Default: "/usr/local/bin/ispell"

              How to invoke ispell (GNU's spell-checking software).

       keep_flagged
              Type: boolean
              Default: no

              If set, read messages marked as flagged will not be moved from
              your spool mailbox to your $mbox mailbox, or as a result of a
              "mbox-hook" command.

       mail_check
              Type: number
              Default: 5

              This variable configures how often (in seconds) mutt should look
              for new mail. Also see the $timeout variable.

       mail_check_recent
              Type: boolean
              Default: yes

              When set, Mutt will only notify you about new mail that has been
              received since the last time you opened the mailbox.  When
              unset, Mutt will notify you if any new mail exists in the
              mailbox, regardless of whether you have visited it recently.

              When $mark_old is set, Mutt does not consider the mailbox to
              contain new mail if only old messages exist.

       mail_check_stats
              Type: boolean
              Default: no

              When set, mutt will periodically calculate message statistics of
              a mailbox while polling for new mail.  It will check for unread,
              flagged, and total message counts.  Because this operation is
              more performance intensive, it defaults to unset, and has a
              separate option, $mail_check_stats_interval, to control how
              often to update these counts.

       mail_check_stats_interval
              Type: number
              Default: 60

              When $mail_check_stats is set, this variable configures how
              often (in seconds) mutt will update message counts.

       mailcap_path
              Type: string
              Default: ""

              This variable specifies which files to consult when attempting
              to display MIME bodies not directly supported by Mutt.

       mailcap_sanitize
              Type: boolean
              Default: yes

              If set, mutt will restrict possible characters in mailcap %
              expandos to a well-defined set of safe characters.  This is the
              safe setting, but we are not sure it doesn't break some more
              advanced MIME stuff.

              DON'T CHANGE THIS SETTING UNLESS YOU ARE REALLY SURE WHAT YOU
              ARE DOING!

       maildir_header_cache_verify
              Type: boolean
              Default: yes

              Check for Maildir unaware programs other than mutt having
              modified maildir files when the header cache is in use.  This
              incurs one stat(2) per message every time the folder is opened
              (which can be very slow for NFS folders).


       maildir_trash
              Type: boolean
              Default: no

              If set, messages marked as deleted will be saved with the
              maildir trashed flag instead of unlinked.  Note: this only
              applies to maildir-style mailboxes.  Setting it will have no
              effect on other mailbox types.

       maildir_check_cur
              Type: boolean
              Default: no

              If set, mutt will poll both the new and cur directories of a
              maildir folder for new messages.  This might be useful if other
              programs interacting with the folder (e.g. dovecot) are moving
              new messages to the cur directory.  Note that setting this
              option may slow down polling for new messages in large folders,
              since mutt has to scan all cur messages.

       mark_macro_prefix
              Type: string
              Default: "'"

              Prefix for macros created using mark-message.  A new macro
              automatically generated with <mark-message>a will be composed
              from this prefix and the letter a.

       mark_old
              Type: boolean
              Default: yes

              Controls whether or not mutt marks new unread messages as old if
              you exit a mailbox without reading them.  With this option set,
              the next time you start mutt, the messages will show up with an
              "O" next to them in the index menu, indicating that they are
              old.

       markers
              Type: boolean
              Default: yes

              Controls the display of wrapped lines in the internal pager. If
              set, a "+" marker is displayed at the beginning of wrapped
              lines.

              Also see the $smart_wrap variable.

       mask
              Type: regular expression
              Default: "!^\.[^.]"

              A regular expression used in the file browser, optionally
              preceded by the not operator "!".  Only files whose names match
              this mask will be shown. The match is always case-sensitive.

       mbox
              Type: path
              Default: "~/mbox"

              This specifies the folder into which read mail in your
              $spoolfile folder will be appended.

              Also see the $move variable.

       mbox_type
              Type: folder magic
              Default: mbox

              The default mailbox type used when creating new folders. May be
              any of "mbox", "MMDF", "MH" and "Maildir". This is overridden by
              the -m command-line option.

       menu_context
              Type: number
              Default: 0

              This variable controls the number of lines of context that are
              given when scrolling through menus. (Similar to $pager_context.)

       menu_move_off
              Type: boolean
              Default: yes

              When unset, the bottom entry of menus will never scroll up past
              the bottom of the screen, unless there are less entries than
              lines.  When set, the bottom entry may move off the bottom.

       menu_scroll
              Type: boolean
              Default: no

              When set, menus will be scrolled up or down one line when you
              attempt to move across a screen boundary.  If unset, the screen
              is cleared and the next or previous page of the menu is
              displayed (useful for slow links to avoid many redraws).

       message_cache_clean
              Type: boolean
              Default: no

              If set, mutt will clean out obsolete entries from the message
              cache when the mailbox is synchronized. You probably only want
              to set it every once in a while, since it can be a little slow
              (especially for large folders).

       message_cachedir
              Type: path
              Default: ""

              Set this to a directory and mutt will cache copies of messages
              from your IMAP and POP servers here. You are free to remove
              entries at any time.

              When setting this variable to a directory, mutt needs to fetch
              every remote message only once and can perform regular
              expression searches as fast as for local folders.

              Also see the $message_cache_clean variable.

       message_format
              Type: string
              Default: "%s"

              This is the string displayed in the "attachment" menu for
              attachments of type message/rfc822.  For a full listing of
              defined printf(3)-like sequences see the section on
              $index_format.

       meta_key
              Type: boolean
              Default: no

              If set, forces Mutt to interpret keystrokes with the high bit
              (bit 8) set as if the user had pressed the Esc key and whatever
              key remains after having the high bit removed.  For example, if
              the key pressed has an ASCII value of 0xf8, then this is treated
              as if the user had pressed Esc then "x".  This is because the
              result of removing the high bit from 0xf8 is 0x78, which is the
              ASCII character "x".

       metoo
              Type: boolean
              Default: no

              If unset, Mutt will remove your address (see the "alternates"
              command) from the list of recipients when replying to a message.

       mh_purge
              Type: boolean
              Default: no

              When unset, mutt will mimic mh's behavior and rename deleted
              messages to ,<old file name> in mh folders instead of really
              deleting them. This leaves the message on disk but makes
              programs reading the folder ignore it. If the variable is set,
              the message files will simply be deleted.

              This option is similar to $maildir_trash for Maildir folders.

       mh_seq_flagged
              Type: string
              Default: "flagged"

              The name of the MH sequence used for flagged messages.

       mh_seq_replied
              Type: string
              Default: "replied"

              The name of the MH sequence used to tag replied messages.

       mh_seq_unseen
              Type: string
              Default: "unseen"

              The name of the MH sequence used for unseen messages.

       mime_forward
              Type: quadoption
              Default: no

              When set, the message you are forwarding will be attached as a
              separate message/rfc822 MIME part instead of included in the
              main body of the message.  This is useful for forwarding MIME
              messages so the receiver can properly view the message as it was
              delivered to you. If you like to switch between MIME and not
              MIME from mail to mail, set this variable to "ask-no" or
              "ask-yes".

              Also see $forward_decode and $mime_forward_decode.

       mime_forward_decode
              Type: boolean
              Default: no

              Controls the decoding of complex MIME messages into text/plain
              when forwarding a message while $mime_forward is set. Otherwise
              $forward_decode is used instead.

       mime_forward_rest
              Type: quadoption
              Default: yes

              When forwarding multiple attachments of a MIME message from the
              attachment menu, attachments which cannot be decoded in a
              reasonable manner will be attached to the newly composed message
              if this option is set.

       mime_type_query_command
              Type: string
              Default: ""

              This specifies a command to run, to determine the mime type of a
              new attachment when composing a message.  Unless
              $mime_type_query_first is set, this will only be run if the
              attachment's extension is not found in the mime.types file.

              The string may contain a "%s", which will be substituted with
              the attachment filename.  Mutt will add quotes around the string
              substituted for "%s" automatically according to shell quoting
              rules, so you should avoid adding your own.  If no "%s" is found
              in the string, Mutt will append the attachment filename to the
              end of the string.

              The command should output a single line containing the
              attachment's mime type.

              Suggested values are "xdg-mime query filetype" or "file -bi".

       mime_type_query_first
              Type: boolean
              Default: no

              When set, the $mime_type_query_command will be run before the
              mime.types lookup.

       mix_entry_format
              Type: string
              Default: "%4n %c %-16s %a"

              This variable describes the format of a remailer line on the
              mixmaster chain selection screen.  The following printf(3)-like
              sequences are supported:
              %n     The running number on the menu.
              %c     Remailer capabilities.
              %s     The remailer's short name.
              %a     The remailer's e-mail address.

       mixmaster
              Type: path
              Default: "mixmaster"

              This variable contains the path to the Mixmaster binary on your
              system.  It is used with various sets of parameters to gather
              the list of known remailers, and to finally send a message
              through the mixmaster chain.

       move
              Type: quadoption
              Default: no

              Controls whether or not Mutt will move read messages from your
              spool mailbox to your $mbox mailbox, or as a result of a "mbox-
              hook" command.

       narrow_tree
              Type: boolean
              Default: no

              This variable, when set, makes the thread tree narrower,
              allowing deeper threads to fit on the screen.


       net_inc
              Type: number
              Default: 10

              Operations that expect to transfer a large amount of data over
              the network will update their progress every $net_inc kilobytes.
              If set to 0, no progress messages will be displayed.

              See also $read_inc, $write_inc and $net_inc.

       new_mail_command
              Type: path
              Default: ""

              If set, Mutt will call this command after a new message is
              received.  See the $status_format documentation for the values
              that can be formatted into this command.

       pager
              Type: path
              Default: "builtin"

              This variable specifies which pager you would like to use to
              view messages. The value "builtin" means to use the built-in
              pager, otherwise this variable should specify the pathname of
              the external pager you would like to use.

              Using an external pager may have some disadvantages: Additional
              keystrokes are necessary because you can't call mutt functions
              directly from the pager, and screen resizes cause lines longer
              than the screen width to be badly formatted in the help menu.

       pager_context
              Type: number
              Default: 0

              This variable controls the number of lines of context that are
              given when displaying the next or previous page in the internal
              pager.  By default, Mutt will display the line after the last
              one on the screen at the top of the next page (0 lines of
              context).

              This variable also specifies the amount of context given for
              search results. If positive, this many lines will be given
              before a match, if 0, the match will be top-aligned.

       pager_format
              Type: string
              Default: "-%Z- %C/%m: %-20.20n   %s%*  -- (%P)"

              This variable controls the format of the one-line message
              "status" displayed before each message in either the internal or
              an external pager.  The valid sequences are listed in the
              $index_format section.


       pager_index_lines
              Type: number
              Default: 0

              Determines the number of lines of a mini-index which is shown
              when in the pager.  The current message, unless near the top or
              bottom of the folder, will be roughly one third of the way down
              this mini-index, giving the reader the context of a few messages
              before and after the message.  This is useful, for example, to
              determine how many messages remain to be read in the current
              thread.  One of the lines is reserved for the status bar from
              the index, so a setting of 6 will only show 5 lines of the
              actual index.  A value of 0 results in no index being shown.  If
              the number of messages in the current folder is less than
              $pager_index_lines, then the index will only use as many lines
              as it needs.

       pager_stop
              Type: boolean
              Default: no

              When set, the internal-pager will not move to the next message
              when you are at the end of a message and invoke the <next-page>
              function.

       pgp_auto_decode
              Type: boolean
              Default: no

              If set, mutt will automatically attempt to decrypt traditional
              PGP messages whenever the user performs an operation which
              ordinarily would result in the contents of the message being
              operated on.  For example, if the user displays a
              pgp-traditional message which has not been manually checked with
              the <check-traditional-pgp> function, mutt will automatically
              check the message for traditional pgp.

       pgp_autoinline
              Type: boolean
              Default: no

              This option controls whether Mutt generates old-style inline
              (traditional) PGP encrypted or signed messages under certain
              circumstances.  This can be overridden by use of the pgp menu,
              when inline is not required.  The GPGME backend does not support
              this option.

              Note that Mutt might automatically use PGP/MIME for messages
              which consist of more than a single MIME part.  Mutt can be
              configured to ask before sending PGP/MIME messages when inline
              (traditional) would not work.

              Also see the $pgp_mime_auto variable.

              Also note that using the old-style PGP message format is
              strongly deprecated.  (PGP only)

       pgp_check_exit
              Type: boolean
              Default: yes

              If set, mutt will check the exit code of the PGP subprocess when
              signing or encrypting.  A non-zero exit code means that the
              subprocess failed.  (PGP only)

       pgp_check_gpg_decrypt_status_fd
              Type: boolean
              Default: yes

              If set, mutt will check the status file descriptor output of
              $pgp_decrypt_command and $pgp_decode_command for GnuPG status
              codes indicating successful decryption.  This will check for the
              presence of DECRYPTION_OKAY, absence of DECRYPTION_FAILED, and
              that all PLAINTEXT occurs between the BEGIN_DECRYPTION and
              END_DECRYPTION status codes.

              If unset, mutt will instead match the status fd output against
              $pgp_decryption_okay.  (PGP only)

       pgp_clearsign_command
              Type: string
              Default: ""

              This format is used to create an old-style "clearsigned" PGP
              message.  Note that the use of this format is strongly
              deprecated.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_decode_command
              Type: string
              Default: ""

              This format strings specifies a command which is used to decode
              application/pgp attachments.

              The PGP command formats have their own set of printf(3)-like
              sequences:
              %p     Expands to PGPPASSFD=0 when a pass phrase is needed, to
                     an empty string otherwise. Note: This may be used with a
                     %? construct.
              %f     Expands to the name of a file containing a message.
              %s     Expands to the name of a file containing the signature
                     part
                                of a multipart/signed attachment when
                     verifying it.
              %a     The value of $pgp_sign_as if set, otherwise the value of
                     $pgp_default_key.
              %r     One or more key IDs (or fingerprints if available).

              For examples on how to configure these formats for the various
              versions of PGP which are floating around, see the pgp and gpg
              sample configuration files in the samples/ subdirectory which
              has been installed on your system alongside the documentation.
              (PGP only)


       pgp_decrypt_command
              Type: string
              Default: ""

              This command is used to decrypt a PGP encrypted message.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_decryption_okay
              Type: regular expression
              Default: ""

              If you assign text to this variable, then an encrypted PGP
              message is only considered successfully decrypted if the output
              from $pgp_decrypt_command contains the text.  This is used to
              protect against a spoofed encrypted message, with
              multipart/encrypted headers but containing a block that is not
              actually encrypted.  (e.g. simply signed and ascii armored
              text).

              Note that if $pgp_check_gpg_decrypt_status_fd is set, this
              variable is ignored.  (PGP only)

       pgp_default_key
              Type: string
              Default: ""

              This is the default key-pair to use for PGP operations.  It will
              be used for encryption (see $postpone_encrypt and
              $pgp_self_encrypt).

              It will also be used for signing unless $pgp_sign_as is set.

              The (now deprecated) pgp_self_encrypt_as is an alias for this
              variable, and should no longer be used.  (PGP only)

       pgp_encrypt_only_command
              Type: string
              Default: ""

              This command is used to encrypt a body part without signing it.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_encrypt_sign_command
              Type: string
              Default: ""

              This command is used to both sign and encrypt a body part.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)


       pgp_entry_format
              Type: string
              Default: "%4n %t%f %4l/0x%k %-4a %2c %u"

              This variable allows you to customize the PGP key selection menu
              to your personal taste. This string is similar to $index_format,
              but has its own set of printf(3)-like sequences:
              %n     number
              %k     key id
              %u     user id
              %a     algorithm
              %l     key length
              %f     flags
              %c     capabilities
              %t     trust/validity of the key-uid association
              %[<s>] date of the key where <s> is an strftime(3) expression

              (PGP only)

       pgp_export_command
              Type: string
              Default: ""

              This command is used to export a public key from the user's key
              ring.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_getkeys_command
              Type: string
              Default: ""

              This command is invoked whenever Mutt needs to fetch the public
              key associated with an email address.  Of the sequences
              supported by $pgp_decode_command, %r is the only printf(3)-like
              sequence used with this format.  Note that in this case, %r
              expands to the email address, not the public key ID (the key ID
              is unknown, which is why Mutt is invoking this command).  (PGP
              only)

       pgp_good_sign
              Type: regular expression
              Default: ""

              If you assign a text to this variable, then a PGP signature is
              only considered verified if the output from $pgp_verify_command
              contains the text. Use this variable if the exit code from the
              command is 0 even for bad signatures.  (PGP only)

       pgp_ignore_subkeys
              Type: boolean
              Default: yes

              Setting this variable will cause Mutt to ignore OpenPGP subkeys.
              Instead, the principal key will inherit the subkeys'
              capabilities.  Unset this if you want to play interesting key
              selection games.  (PGP only)

       pgp_import_command
              Type: string
              Default: ""

              This command is used to import a key from a message into the
              user's public key ring.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_list_pubring_command
              Type: string
              Default: ""

              This command is used to list the public key ring's contents.
              The output format must be analogous to the one used by

              gpg --list-keys --with-colons --with-fingerprint

              This format is also generated by the pgpring utility which comes
              with mutt.

              Note: gpg's fixed-list-mode option should not be used.  It
              produces a different date format which may result in mutt
              showing incorrect key generation dates.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_list_secring_command
              Type: string
              Default: ""

              This command is used to list the secret key ring's contents.
              The output format must be analogous to the one used by:

              gpg --list-keys --with-colons --with-fingerprint

              This format is also generated by the pgpring utility which comes
              with mutt.

              Note: gpg's fixed-list-mode option should not be used.  It
              produces a different date format which may result in mutt
              showing incorrect key generation dates.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_long_ids
              Type: boolean
              Default: yes

              If set, use 64 bit PGP key IDs, if unset use the normal 32 bit
              key IDs.  NOTE: Internally, Mutt has transitioned to using
              fingerprints (or long key IDs as a fallback).  This option now
              only controls the display of key IDs in the key selection menu
              and a few other places.  (PGP only)

       pgp_mime_auto
              Type: quadoption
              Default: ask-yes

              This option controls whether Mutt will prompt you for
              automatically sending a (signed/encrypted) message using
              PGP/MIME when inline (traditional) fails (for any reason).

              Also note that using the old-style PGP message format is
              strongly deprecated.  (PGP only)

       pgp_replyinline
              Type: boolean
              Default: no

              Setting this variable will cause Mutt to always attempt to
              create an inline (traditional) message when replying to a
              message which is PGP encrypted/signed inline.  This can be
              overridden by use of the pgp menu, when inline is not required.
              This option does not automatically detect if the (replied-to)
              message is inline; instead it relies on Mutt internals for
              previously checked/flagged messages.

              Note that Mutt might automatically use PGP/MIME for messages
              which consist of more than a single MIME part.  Mutt can be
              configured to ask before sending PGP/MIME messages when inline
              (traditional) would not work.

              Also see the $pgp_mime_auto variable.

              Also note that using the old-style PGP message format is
              strongly deprecated.  (PGP only)

       pgp_retainable_sigs
              Type: boolean
              Default: no

              If set, signed and encrypted messages will consist of nested
              multipart/signed and multipart/encrypted body parts.

              This is useful for applications like encrypted and signed
              mailing lists, where the outer layer (multipart/encrypted) can
              be easily removed, while the inner multipart/signed part is
              retained.  (PGP only)

       pgp_self_encrypt
              Type: boolean
              Default: yes

              When set, PGP encrypted messages will also be encrypted using
              the key in $pgp_default_key.  (PGP only)


       pgp_show_unusable
              Type: boolean
              Default: yes

              If set, mutt will display non-usable keys on the PGP key
              selection menu.  This includes keys which have been revoked,
              have expired, or have been marked as "disabled" by the user.
              (PGP only)

       pgp_sign_as
              Type: string
              Default: ""

              If you have a different key pair to use for signing, you should
              set this to the signing key.  Most people will only need to set
              $pgp_default_key.  It is recommended that you use the keyid form
              to specify your key (e.g. 0x00112233).  (PGP only)

       pgp_sign_command
              Type: string
              Default: ""

              This command is used to create the detached PGP signature for a
              multipart/signed PGP/MIME body part.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_sort_keys
              Type: sort order
              Default: address

              Specifies how the entries in the pgp menu are sorted. The
              following are legal values:
              address
                     sort alphabetically by user id
              keyid  sort alphabetically by key id
              date   sort by key creation date
              trust  sort by the trust of the key

              If you prefer reverse order of the above values, prefix it with
              "reverse-".  (PGP only)

       pgp_strict_enc
              Type: boolean
              Default: yes

              If set, Mutt will automatically encode PGP/MIME signed messages
              as quoted-printable.  Please note that unsetting this variable
              may lead to problems with non-verifyable PGP signatures, so only
              change this if you know what you are doing.  (PGP only)

       pgp_timeout
              Type: number
              Default: 300

              The number of seconds after which a cached passphrase will
              expire if not used.  (PGP only)

       pgp_use_gpg_agent
              Type: boolean
              Default: no

              If set, mutt will use a possibly-running gpg-agent(1) process.
              Note that as of version 2.1, GnuPG no longer exports
              GPG_AGENT_INFO, so mutt no longer verifies if the agent is
              running.  (PGP only)

       pgp_verify_command
              Type: string
              Default: ""

              This command is used to verify PGP signatures.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pgp_verify_key_command
              Type: string
              Default: ""

              This command is used to verify key information from the key
              selection menu.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)

       pipe_decode
              Type: boolean
              Default: no

              Used in connection with the <pipe-message> command.  When unset,
              Mutt will pipe the messages without any preprocessing. When set,
              Mutt will weed headers and will attempt to decode the messages
              first.

       pipe_sep
              Type: string
              Default: "\n"

              The separator to add between messages when piping a list of
              tagged messages to an external Unix command.

       pipe_split
              Type: boolean
              Default: no

              Used in connection with the <pipe-message> function following
              <tag-prefix>.  If this variable is unset, when piping a list of
              tagged messages Mutt will concatenate the messages and will pipe
              them all concatenated.  When set, Mutt will pipe the messages
              one by one.  In both cases the messages are piped in the current
              sorted order, and the $pipe_sep separator is added after each
              message.

       pop_auth_try_all
              Type: boolean
              Default: yes

              If set, Mutt will try all available authentication methods.
              When unset, Mutt will only fall back to other authentication
              methods if the previous methods are unavailable. If a method is
              available but authentication fails, Mutt will not connect to the
              POP server.

       pop_authenticators
              Type: string
              Default: ""

              This is a colon-delimited list of authentication methods mutt
              may attempt to use to log in to an POP server, in the order mutt
              should try them.  Authentication methods are either "user",
              "apop" or any SASL mechanism, e.g. "digest-md5", "gssapi" or
              "cram-md5".  This option is case-insensitive. If this option is
              unset (the default) mutt will try all available methods, in
              order from most-secure to least-secure.

              Example:

              set pop_authenticators="digest-md5:apop:user"

       pop_checkinterval
              Type: number
              Default: 60

              This variable configures how often (in seconds) mutt should look
              for new mail in the currently selected mailbox if it is a POP
              mailbox.

       pop_delete
              Type: quadoption
              Default: ask-no

              If set, Mutt will delete successfully downloaded messages from
              the POP server when using the <fetch-mail> function.  When
              unset, Mutt will download messages but also leave them on the
              POP server.

       pop_host
              Type: string
              Default: ""

              The name of your POP server for the <fetch-mail> function.  You
              can also specify an alternative port, username and password,
              i.e.:

              [pop[s]://][username[:password]@]popserver[:port]

              where "[...]" denotes an optional part.

       pop_last
              Type: boolean
              Default: no

              If this variable is set, mutt will try to use the "LAST" POP
              command for retrieving only unread messages from the POP server
              when using the <fetch-mail> function.

       pop_pass
              Type: string
              Default: ""

              Specifies the password for your POP account.  If unset, Mutt
              will prompt you for your password when you open a POP mailbox.

              Warning: you should only use this option when you are on a
              fairly secure machine, because the superuser can read your
              muttrc even if you are the only one who can read the file.

       pop_reconnect
              Type: quadoption
              Default: ask-yes

              Controls whether or not Mutt will try to reconnect to the POP
              server if the connection is lost.

       pop_user
              Type: string
              Default: ""

              Your login name on the POP server.

              This variable defaults to your user name on the local machine.

       post_indent_string
              Type: string
              Default: ""

              Similar to the $attribution variable, Mutt will append this
              string after the inclusion of a message which is being replied
              to.

       postpone
              Type: quadoption
              Default: ask-yes

              Controls whether or not messages are saved in the $postponed
              mailbox when you elect not to send immediately.

              Also see the $recall variable.

       postponed
              Type: path
              Default: "~/postponed"

              Mutt allows you to indefinitely "postpone sending a message"
              which you are editing.  When you choose to postpone a message,
              Mutt saves it in the mailbox specified by this variable.

              Also see the $postpone variable.

       postpone_encrypt
              Type: boolean
              Default: no

              When set, postponed messages that are marked for encryption will
              be self-encrypted.  Mutt will first try to encrypt using the
              value specified in $pgp_default_key or $smime_default_key.  If
              those are not set, it will try the deprecated
              $postpone_encrypt_as.  (Crypto only)

       postpone_encrypt_as
              Type: string
              Default: ""

              This is a deprecated fall-back variable for $postpone_encrypt.
              Please use $pgp_default_key or $smime_default_key.  (Crypto
              only)

       preconnect
              Type: string
              Default: ""

              If set, a shell command to be executed if mutt fails to
              establish a connection to the server. This is useful for setting
              up secure connections, e.g. with ssh(1). If the command returns
              a  nonzero status, mutt gives up opening the server. Example:

              set preconnect="ssh -f -q -L 1234:mailhost.net:143 mailhost.net \
              sleep 20 < /dev/null > /dev/null"

              Mailbox "foo" on "mailhost.net" can now be reached as
              "{localhost:1234}foo".

              Note: For this example to work, you must be able to log in to
              the remote machine without having to enter a password.

       print
              Type: quadoption
              Default: ask-no

              Controls whether or not Mutt really prints messages.  This is
              set to "ask-no" by default, because some people accidentally hit
              "p" often.

       print_command
              Type: path
              Default: "lpr"

              This specifies the command pipe that should be used to print
              messages.

       print_decode
              Type: boolean
              Default: yes

              Used in connection with the <print-message> command.  If this
              option is set, the message is decoded before it is passed to the
              external command specified by $print_command.  If this option is
              unset, no processing will be applied to the message when
              printing it.  The latter setting may be useful if you are using
              some advanced printer filter which is able to properly format
              e-mail messages for printing.

       print_split
              Type: boolean
              Default: no

              Used in connection with the <print-message> command.  If this
              option is set, the command specified by $print_command is
              executed once for each message which is to be printed.  If this
              option is unset, the command specified by $print_command is
              executed only once, and all the messages are concatenated, with
              a form feed as the message separator.

              Those who use the enscript(1) program's mail-printing mode will
              most likely want to set this option.

       prompt_after
              Type: boolean
              Default: yes

              If you use an external $pager, setting this variable will cause
              Mutt to prompt you for a command when the pager exits rather
              than returning to the index menu.  If unset, Mutt will return to
              the index menu when the external pager exits.

       query_command
              Type: path
              Default: ""

              This specifies the command Mutt will use to make external
              address queries.  The string may contain a "%s", which will be
              substituted with the query string the user types.  Mutt will add
              quotes around the string substituted for "%s" automatically
              according to shell quoting rules, so you should avoid adding
              your own.  If no "%s" is found in the string, Mutt will append
              the user's query to the end of the string.  See "query" for more
              information.

       query_format
              Type: string
              Default: "%4c %t %-25.25a %-25.25n %?e?(%e)?"

              This variable describes the format of the "query" menu. The
              following printf(3)-style sequences are understood:
              %a     destination address
              %c     current entry number
              %e     extra information *
              %n     destination name
              %t     "*" if current entry is tagged, a space otherwise
              %>X    right justify the rest of the string and pad with "X"
              %|X    pad to the end of the line with "X"
              %*X    soft-fill with character "X" as pad

              For an explanation of "soft-fill", see the $index_format
              documentation.

              * = can be optionally printed if nonzero, see the $status_format
              documentation.

       quit
              Type: quadoption
              Default: yes

              This variable controls whether "quit" and "exit" actually quit
              from mutt.  If this option is set, they do quit, if it is unset,
              they have no effect, and if it is set to ask-yes or ask-no, you
              are prompted for confirmation when you try to quit.

       quote_regexp
              Type: regular expression
              Default: "^([ \t]*[|>:}#])+"

              A regular expression used in the internal pager to determine
              quoted sections of text in the body of a message. Quoted text
              may be filtered out using the <toggle-quoted> command, or
              colored according to the "color quoted" family of directives.

              Higher levels of quoting may be colored differently ("color
              quoted1", "color quoted2", etc.). The quoting level is
              determined by removing the last character from the matched text
              and recursively reapplying the regular expression until it fails
              to produce a match.

              Match detection may be overridden by the $smileys regular
              expression.

       read_inc
              Type: number
              Default: 10

              If set to a value greater than 0, Mutt will display which
              message it is currently on when reading a mailbox or when
              performing search actions such as search and limit. The message
              is printed after this many messages have been read or searched
              (e.g., if set to 25, Mutt will print a message when it is at
              message 25, and then again when it gets to message 50).  This
              variable is meant to indicate progress when reading or searching
              large mailboxes which may take some time.  When set to 0, only a
              single message will appear before the reading the mailbox.

              Also see the $write_inc, $net_inc and $time_inc variables and
              the "tuning" section of the manual for performance
              considerations.

       read_only
              Type: boolean
              Default: no

              If set, all folders are opened in read-only mode.

       realname
              Type: string
              Default: ""

              This variable specifies what "real" or "personal" name should be
              used when sending messages.

              By default, this is the GECOS field from /etc/passwd.  Note that
              this variable will not be used when the user has set a real name
              in the $from variable.

       recall
              Type: quadoption
              Default: ask-yes

              Controls whether or not Mutt recalls postponed messages when
              composing a new message.

              Setting this variable to yes is not generally useful, and thus
              not recommended.  Note that the <recall-message> function can be
              used to manually recall postponed messages.

              Also see $postponed variable.

       record
              Type: path
              Default: "~/sent"

              This specifies the file into which your outgoing messages should
              be appended.  (This is meant as the primary method for saving a
              copy of your messages, but another way to do this is using the
              "my_hdr" command to create a "Bcc:" field with your email
              address in it.)

              The value of $record is overridden by the $force_name and
              $save_name variables, and the "fcc-hook" command.


       reflow_space_quotes
              Type: boolean
              Default: yes

              This option controls how quotes from format=flowed messages are
              displayed in the pager and when replying (with $text_flowed
              unset).  When set, this option adds spaces after each level of
              quote marks, turning ">>>foo" into "> > > foo".

              Note: If $reflow_text is unset, this option has no effect.
              Also, this option does not affect replies when $text_flowed is
              set.

       reflow_text
              Type: boolean
              Default: yes

              When set, Mutt will reformat paragraphs in text/plain parts
              marked format=flowed.  If unset, Mutt will display paragraphs
              unaltered from how they appear in the message body.  See RFC3676
              for details on the format=flowed format.

              Also see $reflow_wrap, and $wrap.

       reflow_wrap
              Type: number
              Default: 78

              This variable controls the maximum paragraph width when
              reformatting text/plain parts when $reflow_text is set.  When
              the value is 0, paragraphs will be wrapped at the terminal's
              right margin.  A positive value sets the paragraph width
              relative to the left margin.  A negative value set the paragraph
              width relative to the right margin.

              Also see $wrap.

       reply_regexp
              Type: regular expression
              Default: "^(re([\[0-9\]+])*|aw):[ \t]*"

              A regular expression used to recognize reply messages when
              threading and replying. The default value corresponds to the
              English "Re:" and the German "Aw:".

       reply_self
              Type: boolean
              Default: no

              If unset and you are replying to a message sent by you, Mutt
              will assume that you want to reply to the recipients of that
              message rather than to yourself.

              Also see the "alternates" command.

       reply_to
              Type: quadoption
              Default: ask-yes

              If set, when replying to a message, Mutt will use the address
              listed in the Reply-to: header as the recipient of the reply.
              If unset, it will use the address in the From: header field
              instead.  This option is useful for reading a mailing list that
              sets the Reply-To: header field to the list address and you want
              to send a private message to the author of a message.

       resolve
              Type: boolean
              Default: yes

              When set, the cursor will be automatically advanced to the next
              (possibly undeleted) message whenever a command that modifies
              the current message is executed.

       resume_draft_files
              Type: boolean
              Default: no

              If set, draft files (specified by -H on the command line) are
              processed similarly to when resuming a postponed message.
              Recipients are not prompted for; send-hooks are not evaluated;
              no alias expansion takes place; user-defined headers and
              signatures are not added to the message.

       resume_edited_draft_files
              Type: boolean
              Default: yes

              If set, draft files previously edited (via -E -H on the command
              line) will have $resume_draft_files automatically set when they
              are used as a draft file again.

              The first time a draft file is saved, mutt will add a header,
              X-Mutt-Resume-Draft to the saved file.  The next time the draft
              file is read in, if mutt sees the header, it will set
              $resume_draft_files.

              This option is designed to prevent multiple signatures,
              user-defined headers, and other processing effects from being
              made multiple times to the draft file.

       reverse_alias
              Type: boolean
              Default: no

              This variable controls whether or not Mutt will display the
              "personal" name from your aliases in the index menu if it finds
              an alias that matches the message's sender.  For example, if you
              have the following alias:

              alias juser abd30425@somewhere.net (Joe User)


              and then you receive mail which contains the following header:

              From: abd30425@somewhere.net

              It would be displayed in the index menu as "Joe User" instead of
              "abd30425@somewhere.net."  This is useful when the person's
              e-mail address is not human friendly.

       reverse_name
              Type: boolean
              Default: no

              It may sometimes arrive that you receive mail to a certain
              machine, move the messages to another machine, and reply to some
              the messages from there.  If this variable is set, the default
              From: line of the reply messages is built using the address
              where you received the messages you are replying to if that
              address matches your "alternates".  If the variable is unset, or
              the address that would be used doesn't match your "alternates",
              the From: line will use your address on the current machine.

              Also see the "alternates" command.

       reverse_realname
              Type: boolean
              Default: yes

              This variable fine-tunes the behavior of the $reverse_name
              feature.  When it is set, mutt will use the address from
              incoming messages as-is, possibly including eventual real names.
              When it is unset, mutt will override any such real names with
              the setting of the $realname variable.

       rfc2047_parameters
              Type: boolean
              Default: no

              When this variable is set, Mutt will decode RFC2047-encoded MIME
              parameters. You want to set this variable when mutt suggests you
              to save attachments to files named like:

              =?iso-8859-1?Q?file=5F=E4=5F991116=2Ezip?=

              When this variable is set interactively, the change won't be
              active until you change folders.

              Note that this use of RFC2047's encoding is explicitly
              prohibited by the standard, but nevertheless encountered in the
              wild.

              Also note that setting this parameter will not have the effect
              that mutt generates this kind of encoding.  Instead, mutt will
              unconditionally use the encoding specified in RFC2231.


       save_address
              Type: boolean
              Default: no

              If set, mutt will take the sender's full address when choosing a
              default folder for saving a mail. If $save_name or $force_name
              is set too, the selection of the Fcc folder will be changed as
              well.

       save_empty
              Type: boolean
              Default: yes

              When unset, mailboxes which contain no saved messages will be
              removed when closed (the exception is $spoolfile which is never
              removed).  If set, mailboxes are never removed.

              Note: This only applies to mbox and MMDF folders, Mutt does not
              delete MH and Maildir directories.

       save_history
              Type: number
              Default: 0

              This variable controls the size of the history (per category)
              saved in the $history_file file.

       save_name
              Type: boolean
              Default: no

              This variable controls how copies of outgoing messages are
              saved.  When set, a check is made to see if a mailbox specified
              by the recipient address exists (this is done by searching for a
              mailbox in the $folder directory with the username part of the
              recipient address).  If the mailbox exists, the outgoing message
              will be saved to that mailbox, otherwise the message is saved to
              the $record mailbox.

              Also see the $force_name variable.

       score
              Type: boolean
              Default: yes

              When this variable is unset, scoring is turned off.  This can be
              useful to selectively disable scoring for certain folders when
              the $score_threshold_delete variable and related are used.

       score_threshold_delete
              Type: number
              Default: -1

              Messages which have been assigned a score equal to or lower than
              the value of this variable are automatically marked for deletion
              by mutt.  Since mutt scores are always greater than or equal to
              zero, the default setting of this variable will never mark a
              message for deletion.

       score_threshold_flag
              Type: number
              Default: 9999

              Messages which have been assigned a score greater than or equal
              to this variable's value are automatically marked "flagged".

       score_threshold_read
              Type: number
              Default: -1

              Messages which have been assigned a score equal to or lower than
              the value of this variable are automatically marked as read by
              mutt.  Since mutt scores are always greater than or equal to
              zero, the default setting of this variable will never mark a
              message read.

       search_context
              Type: number
              Default: 0

              For the pager, this variable specifies the number of lines shown
              before search results. By default, search results will be
              top-aligned.

       send_charset
              Type: string
              Default: "us-ascii:iso-8859-1:utf-8"

              A colon-delimited list of character sets for outgoing messages.
              Mutt will use the first character set into which the text can be
              converted exactly.  If your $charset is not "iso-8859-1" and
              recipients may not understand "UTF-8", it is advisable to
              include in the list an appropriate widely used standard
              character set (such as "iso-8859-2", "koi8-r" or "iso-2022-jp")
              either instead of or after "iso-8859-1".

              In case the text cannot be converted into one of these exactly,
              mutt uses $charset as a fallback.

       sendmail
              Type: path
              Default: "/usr/sbin/sendmail -oem -oi"

              Specifies the program and arguments used to deliver mail sent by
              Mutt.  Mutt expects that the specified program interprets
              additional arguments as recipient addresses.  Mutt appends all
              recipients after adding a -- delimiter (if not already present).
              Additional flags, such as for $use_8bitmime, $use_envelope_from,
              $dsn_notify, or $dsn_return will be added before the delimiter.


       sendmail_wait
              Type: number
              Default: 0

              Specifies the number of seconds to wait for the $sendmail
              process to finish before giving up and putting delivery in the
              background.

              Mutt interprets the value of this variable as follows:
              >0     number of seconds to wait for sendmail to finish before
                     continuing
              0      wait forever for sendmail to finish
              <0     always put sendmail in the background without waiting

              Note that if you specify a value other than 0, the output of the
              child process will be put in a temporary file.  If there is some
              error, you will be informed as to where to find the output.

       shell
              Type: path
              Default: ""

              Command to use when spawning a subshell.  By default, the user's
              login shell from /etc/passwd is used.

       sidebar_delim_chars
              Type: string
              Default: "/."

              This contains the list of characters which you would like to
              treat as folder separators for displaying paths in the sidebar.

              Local mail is often arranged in directories:
              `dir1/dir2/mailbox'.

              set sidebar_delim_chars='/'

              IMAP mailboxes are often named: `folder1.folder2.mailbox'.

              set sidebar_delim_chars='.'

              See also: $sidebar_short_path, $sidebar_folder_indent,
              $sidebar_indent_string.

       sidebar_divider_char
              Type: string
              Default: "|"

              This specifies the characters to be drawn between the sidebar
              (when visible) and the other Mutt panels. ASCII and Unicode
              line-drawing characters are supported.

       sidebar_folder_indent
              Type: boolean
              Default: no

              Set this to indent mailboxes in the sidebar.

              See also: $sidebar_short_path, $sidebar_indent_string,
              $sidebar_delim_chars.

       sidebar_format
              Type: string
              Default: "%B%*  %n"

              This variable allows you to customize the sidebar display. This
              string is similar to $index_format, but has its own set of
              printf(3)-like sequences:
              %B     Name of the mailbox
              %S     * Size of mailbox (total number of messages)
              %N     * Number of unread messages in the mailbox
              %n     N if mailbox has new mail, blank otherwise
              %F     * Number of Flagged messages in the mailbox
              %!     "!" : one flagged message; "!!" : two flagged messages;
                     "n!" : n flagged messages (for n > 2).  Otherwise prints
                     nothing.
              %d     * @ Number of deleted messages
              %L     * @ Number of messages after limiting
              %t     * @ Number of tagged messages
              %>X    right justify the rest of the string and pad with "X"
              %|X    pad to the end of the line with "X"
              %*X    soft-fill with character "X" as pad

              * = Can be optionally printed if nonzero @ = Only applicable to
              the current folder

              In order to use %S, %N, %F, and %!, $mail_check_stats must be
              set.  When thus set, a suggested value for this option is
              "%B%?F? [%F]?%* %?N?%N/?%S".

       sidebar_indent_string
              Type: string
              Default: "  "

              This specifies the string that is used to indent mailboxes in
              the sidebar.  It defaults to two spaces.

              See also: $sidebar_short_path, $sidebar_folder_indent,
              $sidebar_delim_chars.

       sidebar_new_mail_only
              Type: boolean
              Default: no

              When set, the sidebar will only display mailboxes containing
              new, or flagged, mail.

              See also: sidebar_whitelist.

       sidebar_next_new_wrap
              Type: boolean
              Default: no

              When set, the <sidebar-next-new> command will not stop and the
              end of the list of mailboxes, but wrap around to the beginning.
              The <sidebar-prev-new> command is similarly affected, wrapping
              around to the end of the list.

       sidebar_short_path
              Type: boolean
              Default: no

              By default the sidebar will show the mailbox's path, relative to
              the $folder variable. Setting sidebar_shortpath=yes will shorten
              the names relative to the previous name. Here's an example:
              shortpath=no
                     shortpath=yes shortpath=yes, folderindent=yes,
                     indentstr=".."
              fruit  fruit fruit
              fruit.apple
                     apple ..apple
              fruit.banana
                     banana ..banana
              fruit.cherry
                     cherry ..cherry

              See also: $sidebar_delim_chars, $sidebar_folder_indent,
              $sidebar_indent_string.

       sidebar_sort_method
              Type: sort order
              Default: order

              Specifies how to sort entries in the file browser.  By default,
              the entries are sorted alphabetically.  Valid values:
              - alpha (alphabetically)
              - count (all message count)
              - flagged (flagged message count)
              - name (alphabetically)
              - new (unread message count)
              - path (alphabetically)
              - unread (unread message count)
              - unsorted

              You may optionally use the "reverse-" prefix to specify reverse
              sorting order (example: "set sort_browser=reverse-date").

       sidebar_visible
              Type: boolean
              Default: no

              This specifies whether or not to show sidebar. The sidebar shows
              a list of all your mailboxes.

              See also: $sidebar_format, $sidebar_width

       sidebar_width
              Type: number
              Default: 30

              This controls the width of the sidebar.  It is measured in
              screen columns.  For example: sidebar_width=20 could display 20
              ASCII characters, or 10 Chinese characters.

       sig_dashes
              Type: boolean
              Default: yes

              If set, a line containing "-- " (note the trailing space) will
              be inserted before your $signature.  It is strongly recommended
              that you not unset this variable unless your signature contains
              just your name.  The reason for this is because many software
              packages use "-- \n" to detect your signature.  For example,
              Mutt has the ability to highlight the signature in a different
              color in the built-in pager.

       sig_on_top
              Type: boolean
              Default: no

              If set, the signature will be included before any quoted or
              forwarded text.  It is strongly recommended that you do not set
              this variable unless you really know what you are doing, and are
              prepared to take some heat from netiquette guardians.

       signature
              Type: path
              Default: "~/.signature"

              Specifies the filename of your signature, which is appended to
              all outgoing messages.   If the filename ends with a pipe ("|"),
              it is assumed that filename is a shell command and input should
              be read from its standard output.

       simple_search
              Type: string
              Default: "~f %s | ~s %s"

              Specifies how Mutt should expand a simple search into a real
              search pattern.  A simple search is one that does not contain
              any of the "~" pattern operators.  See "patterns" for more
              information on search patterns.

              For example, if you simply type "joe" at a search or limit
              prompt, Mutt will automatically expand it to the value specified
              by this variable by replacing "%s" with the supplied string.
              For the default value, "joe" would be expanded to: "~f joe | ~s
              joe".

       sleep_time
              Type: number
              Default: 1

              Specifies time, in seconds, to pause while displaying certain
              informational messages, while moving from folder to folder and
              after expunging messages from the current folder.  The default
              is to pause one second, so a value of zero for this option
              suppresses the pause.

       smart_wrap
              Type: boolean
              Default: yes

              Controls the display of lines longer than the screen width in
              the internal pager. If set, long lines are wrapped at a word
              boundary.  If unset, lines are simply wrapped at the screen
              edge. Also see the $markers variable.

       smileys
              Type: regular expression
              Default: "(>From )|(:[-^]?[][)(><}{|/DP])"

              The pager uses this variable to catch some common false
              positives of $quote_regexp, most notably smileys and not
              consider a line quoted text if it also matches $smileys. This
              mostly happens at the beginning of a line.

       smime_ask_cert_label
              Type: boolean
              Default: yes

              This flag controls whether you want to be asked to enter a label
              for a certificate about to be added to the database or not. It
              is set by default.  (S/MIME only)

       smime_ca_location
              Type: path
              Default: ""

              This variable contains the name of either a directory, or a file
              which contains trusted certificates for use with OpenSSL.
              (S/MIME only)

       smime_certificates
              Type: path
              Default: ""

              Since for S/MIME there is no pubring/secring as with PGP, mutt
              has to handle storage and retrieval of keys by itself. This is
              very basic right now, and keys and certificates are stored in
              two different directories, both named as the hash-value
              retrieved from OpenSSL. There is an index file which contains
              mailbox-address keyid pairs, and which can be manually edited.
              This option points to the location of the certificates.  (S/MIME
              only)

       smime_decrypt_command
              Type: string
              Default: ""

              This format string specifies a command which is used to decrypt
              application/x-pkcs7-mime attachments.

              The OpenSSL command formats have their own set of printf(3)-like
              sequences similar to PGP's:
              %f     Expands to the name of a file containing a message.
              %s     Expands to the name of a file containing the signature
                     part
                                of a multipart/signed attachment when
                     verifying it.
              %k     The key-pair specified with $smime_default_key
              %c     One or more certificate IDs.
              %a     The algorithm used for encryption.
              %d     The message digest algorithm specified with
                     $smime_sign_digest_alg.
              %C     CA location:  Depending on whether $smime_ca_location
                                points to a directory or file, this expands to
                                "-CApath $smime_ca_location" or "-CAfile
                     $smime_ca_location".

              For examples on how to configure these formats, see the smime.rc
              in the samples/ subdirectory which has been installed on your
              system alongside the documentation.  (S/MIME only)

       smime_decrypt_use_default_key
              Type: boolean
              Default: yes

              If set (default) this tells mutt to use the default key for
              decryption. Otherwise, if managing multiple
              certificate-key-pairs, mutt will try to use the mailbox-address
              to determine the key to use. It will ask you to supply a key, if
              it can't find one.  (S/MIME only)

       smime_default_key
              Type: string
              Default: ""

              This is the default key-pair to use for S/MIME operations, and
              must be set to the keyid (the hash-value that OpenSSL generates)
              to work properly.

              It will be used for encryption (see $postpone_encrypt and
              $smime_self_encrypt).

              It will be used for decryption unless
              $smime_decrypt_use_default_key is unset.

              It will also be used for signing unless $smime_sign_as is set.

              The (now deprecated) smime_self_encrypt_as is an alias for this
              variable, and should no longer be used.  (S/MIME only)

       smime_encrypt_command
              Type: string
              Default: ""

              This command is used to create encrypted S/MIME messages.

              This is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_encrypt_with
              Type: string
              Default: "aes256"

              This sets the algorithm that should be used for encryption.
              Valid choices are "aes128", "aes192", "aes256", "des", "des3",
              "rc2-40", "rc2-64", "rc2-128".  (S/MIME only)

       smime_get_cert_command
              Type: string
              Default: ""

              This command is used to extract X509 certificates from a PKCS7
              structure.

              This is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_get_cert_email_command
              Type: string
              Default: ""

              This command is used to extract the mail address(es) used for
              storing X509 certificates, and for verification purposes (to
              check whether the certificate was issued for the sender's
              mailbox).

              This is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_get_signer_cert_command
              Type: string
              Default: ""

              This command is used to extract only the signers X509
              certificate from a S/MIME signature, so that the certificate's
              owner may get compared to the email's "From:" field.

              This is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_import_cert_command
              Type: string
              Default: ""

              This command is used to import a certificate via smime_keys.

              This is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_is_default
              Type: boolean
              Default: no

              The default behavior of mutt is to use PGP on all
              auto-sign/encryption operations. To override and to use OpenSSL
              instead this must be set.  However, this has no effect while
              replying, since mutt will automatically select the same
              application that was used to sign/encrypt the original message.
              (Note that this variable can be overridden by unsetting
              $crypt_autosmime.)  (S/MIME only)

       smime_keys
              Type: path
              Default: ""

              Since for S/MIME there is no pubring/secring as with PGP, mutt
              has to handle storage and retrieval of keys/certs by itself.
              This is very basic right now, and stores keys and certificates
              in two different directories, both named as the hash-value
              retrieved from OpenSSL. There is an index file which contains
              mailbox-address keyid pair, and which can be manually edited.
              This option points to the location of the private keys.  (S/MIME
              only)

       smime_pk7out_command
              Type: string
              Default: ""

              This command is used to extract PKCS7 structures of S/MIME
              signatures, in order to extract the public X509 certificate(s).

              This is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_self_encrypt
              Type: boolean
              Default: yes

              When set, S/MIME encrypted messages will also be encrypted using
              the certificate in $smime_default_key.  (S/MIME only)

       smime_sign_as
              Type: string
              Default: ""

              If you have a separate key to use for signing, you should set
              this to the signing key. Most people will only need to set
              $smime_default_key.  (S/MIME only)

       smime_sign_command
              Type: string
              Default: ""

              This command is used to created S/MIME signatures of type
              multipart/signed, which can be read by all mail clients.

              This is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  NOTE: %c and %k will
              default to $smime_sign_as if set, otherwise $smime_default_key.
              (S/MIME only)

       smime_sign_digest_alg
              Type: string
              Default: "sha256"

              This sets the algorithm that should be used for the signature
              message digest.  Valid choices are "md5", "sha1", "sha224",
              "sha256", "sha384", "sha512".  (S/MIME only)

       smime_sign_opaque_command
              Type: string
              Default: ""

              This command is used to created S/MIME signatures of type
              application/x-pkcs7-signature, which can only be handled by mail
              clients supporting the S/MIME extension.

              This is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_timeout
              Type: number
              Default: 300

              The number of seconds after which a cached passphrase will
              expire if not used.  (S/MIME only)

       smime_verify_command
              Type: string
              Default: ""

              This command is used to verify S/MIME signatures of type
              multipart/signed.

              This is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smime_verify_opaque_command
              Type: string
              Default: ""

              This command is used to verify S/MIME signatures of type
              application/x-pkcs7-mime.

              This is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)

       smtp_authenticators
              Type: string
              Default: ""

              This is a colon-delimited list of authentication methods mutt
              may attempt to use to log in to an SMTP server, in the order
              mutt should try them.  Authentication methods are any SASL
              mechanism, e.g.  "digest-md5", "gssapi" or "cram-md5".  This
              option is case-insensitive. If it is "unset" (the default) mutt
              will try all available methods, in order from most-secure to
              least-secure.

              Example:

              set smtp_authenticators="digest-md5:cram-md5"

       smtp_pass
              Type: string
              Default: ""

              Specifies the password for your SMTP account.  If unset, Mutt
              will prompt you for your password when you first send mail via
              SMTP.  See $smtp_url to configure mutt to send mail via SMTP.

              Warning: you should only use this option when you are on a
              fairly secure machine, because the superuser can read your
              muttrc even if you are the only one who can read the file.

       smtp_url
              Type: string
              Default: ""

              Defines the SMTP smarthost where sent messages should relayed
              for delivery. This should take the form of an SMTP URL, e.g.:

              smtp[s]://[user[:pass]@]host[:port]

              where "[...]" denotes an optional part.  Setting this variable
              overrides the value of the $sendmail variable.

       sort
              Type: sort order
              Default: date

              Specifies how to sort messages in the "index" menu.  Valid
              values are:
              - date or date-sent
              - date-received
              - from
              - mailbox-order (unsorted)
              - score
              - size
              - spam
              - subject
              - threads
              - to

              You may optionally use the "reverse-" prefix to specify reverse
              sorting order (example: "set sort=reverse-date-sent").

       sort_alias
              Type: sort order
              Default: alias

              Specifies how the entries in the "alias" menu are sorted.  The
              following are legal values:
              - address (sort alphabetically by email address)
              - alias (sort alphabetically by alias name)
              - unsorted (leave in order specified in .muttrc)

       sort_aux
              Type: sort order
              Default: date

              When sorting by threads, this variable controls how threads are
              sorted in relation to other threads, and how the branches of the
              thread trees are sorted.  This can be set to any value that
              $sort can, except "threads" (in that case, mutt will just use
              "date-sent").  You can also specify the "last-" prefix in
              addition to the "reverse-" prefix, but "last-" must come after
              "reverse-".  The "last-" prefix causes messages to be sorted
              against its siblings by which has the last descendant, using the
              rest of $sort_aux as an ordering.  For instance,

              set sort_aux=last-date-received

              would mean that if a new message is received in a thread, that
              thread becomes the last one displayed (or the first, if you have
              "set sort=reverse-threads".)

              Note: For reversed $sort order $sort_aux is reversed again
              (which is not the right thing to do, but kept to not break any
              existing configuration setting).

       sort_browser
              Type: sort order
              Default: alpha

              Specifies how to sort entries in the file browser.  By default,
              the entries are sorted alphabetically.  Valid values:
              - alpha (alphabetically)
              - count
              - date
              - size
              - unread
              - unsorted

              You may optionally use the "reverse-" prefix to specify reverse
              sorting order (example: "set sort_browser=reverse-date").

       sort_re
              Type: boolean
              Default: yes

              This variable is only useful when sorting by threads with
              $strict_threads unset.  In that case, it changes the heuristic
              mutt uses to thread messages by subject.  With $sort_re set,
              mutt will only attach a message as the child of another message
              by subject if the subject of the child message starts with a
              substring matching the setting of $reply_regexp.  With $sort_re
              unset, mutt will attach the message whether or not this is the
              case, as long as the non-$reply_regexp parts of both messages
              are identical.

       spam_separator
              Type: string
              Default: ","

              This variable controls what happens when multiple spam headers
              are matched: if unset, each successive header will overwrite any
              previous matches value for the spam label. If set, each
              successive match will append to the previous, using this
              variable's value as a separator.

       spoolfile
              Type: path
              Default: ""

              If your spool mailbox is in a non-default place where Mutt
              cannot find it, you can specify its location with this variable.
              Mutt will initially set this variable to the value of the
              environment variable $MAIL or $MAILDIR if either is defined.

       ssl_ca_certificates_file
              Type: path
              Default: ""

              This variable specifies a file containing trusted CA
              certificates.  Any server certificate that is signed with one of
              these CA certificates is also automatically accepted. (GnuTLS
              only)

              Example:

              set ssl_ca_certificates_file=/etc/ssl/certs/ca-certificates.crt

       ssl_client_cert
              Type: path
              Default: ""

              The file containing a client certificate and its associated
              private key.

       ssl_force_tls
              Type: boolean
              Default: no

              If this variable is set, Mutt will require that all connections
              to remote servers be encrypted. Furthermore it will attempt to
              negotiate TLS even if the server does not advertise the
              capability, since it would otherwise have to abort the
              connection anyway. This option supersedes $ssl_starttls.

       ssl_min_dh_prime_bits
              Type: number
              Default: 0

              This variable specifies the minimum acceptable prime size (in
              bits) for use in any Diffie-Hellman key exchange. A value of 0
              will use the default from the GNUTLS library. (GnuTLS only)

       ssl_starttls
              Type: quadoption
              Default: yes

              If set (the default), mutt will attempt to use STARTTLS on
              servers advertising the capability. When unset, mutt will not
              attempt to use STARTTLS regardless of the server's capabilities.

       ssl_use_sslv2
              Type: boolean
              Default: no

              This variable specifies whether to attempt to use SSLv2 in the
              SSL authentication process. Note that SSLv2 and SSLv3 are now
              considered fundamentally insecure and are no longer recommended.
              (OpenSSL only)

       ssl_use_sslv3
              Type: boolean
              Default: no

              This variable specifies whether to attempt to use SSLv3 in the
              SSL authentication process. Note that SSLv2 and SSLv3 are now
              considered fundamentally insecure and are no longer recommended.

       ssl_use_tlsv1
              Type: boolean
              Default: yes

              This variable specifies whether to attempt to use TLSv1.0 in the
              SSL authentication process.

       ssl_use_tlsv1_1
              Type: boolean
              Default: yes

              This variable specifies whether to attempt to use TLSv1.1 in the
              SSL authentication process.

       ssl_use_tlsv1_2
              Type: boolean
              Default: yes

              This variable specifies whether to attempt to use TLSv1.2 in the
              SSL authentication process.

       ssl_usesystemcerts
              Type: boolean
              Default: yes

              If set to yes, mutt will use CA certificates in the system-wide
              certificate store when checking if a server certificate is
              signed by a trusted CA. (OpenSSL only)

       ssl_verify_dates
              Type: boolean
              Default: yes

              If set (the default), mutt will not automatically accept a
              server certificate that is either not yet valid or already
              expired. You should only unset this for particular known hosts,
              using the <account-hook> function.

       ssl_verify_host
              Type: boolean
              Default: yes

              If set (the default), mutt will not automatically accept a
              server certificate whose host name does not match the host used
              in your folder URL. You should only unset this for particular
              known hosts, using the <account-hook> function.

       ssl_verify_partial_chains
              Type: boolean
              Default: no

              This option should not be changed from the default unless you
              understand what you are doing.

              Setting this variable to yes will permit verifying partial
              certification chains, i. e. a certificate chain where not the
              root, but an intermediate certificate CA, or the host
              certificate, are marked trusted (in $certificate_file), without
              marking the root signing CA as trusted.

              (OpenSSL 1.0.2b and newer only).

       ssl_ciphers
              Type: string
              Default: ""

              Contains a colon-seperated list of ciphers to use when using
              SSL.  For OpenSSL, see ciphers(1) for the syntax of the string.

              For GnuTLS, this option will be used in place of "NORMAL" at the
              start of the priority string.  See gnutls_priority_init(3) for
              the syntax and more details. (Note: GnuTLS version 2.1.7 or
              higher is required.)

       status_chars
              Type: string
              Default: "-*%A"

              Controls the characters used by the "%r" indicator in
              $status_format. The first character is used when the mailbox is
              unchanged. The second is used when the mailbox has been changed,
              and it needs to be resynchronized. The third is used if the
              mailbox is in read-only mode, or if the mailbox will not be
              written when exiting that mailbox (You can toggle whether to
              write changes to a mailbox with the <toggle-write> operation,
              bound by default to "%"). The fourth is used to indicate that
              the current folder has been opened in attach- message mode
              (Certain operations like composing a new mail, replying,
              forwarding, etc. are not permitted in this mode).

       status_format
              Type: string
              Default: "-%r-Mutt: %f [Msgs:%?M?%M/?%m%?n? New:%n?%?o? Old:%o?%?d? Del:%d?%?F? Flag:%F?%?t? Tag:%t?%?p? Post:%p?%?b? Inc:%b?%?l? %l?]---(%s/%S)-%>-(%P)---"

              Controls the format of the status line displayed in the "index"
              menu.  This string is similar to $index_format, but has its own
              set of printf(3)-like sequences:
              %b     number of mailboxes with new mail *
              %d     number of deleted messages *
              %f     the full pathname of the current mailbox
              %F     number of flagged messages *
              %h     local hostname
              %l     size (in bytes) of the current mailbox *
              %L     size (in bytes) of the messages shown (i.e., which match
                     the current limit) *
              %m     the number of messages in the mailbox *
              %M     the number of messages shown (i.e., which match the
                     current limit) *
              %n     number of new messages in the mailbox *
              %o     number of old unread messages *
              %p     number of postponed messages *
              %P     percentage of the way through the index
              %r     modified/read-only/won't-write/attach-message indicator,
                     according to $status_chars
              %R     number of read messages *
              %s     current sorting mode ($sort)
              %S     current aux sorting method ($sort_aux)
              %t     number of tagged messages *
              %u     number of unread messages *
              %v     Mutt version string
              %V     currently active limit pattern, if any *
              %>X    right justify the rest of the string and pad with "X"
              %|X    pad to the end of the line with "X"
              %*X    soft-fill with character "X" as pad

              For an explanation of "soft-fill", see the $index_format
              documentation.

              * = can be optionally printed if nonzero

              Some of the above sequences can be used to optionally print a
              string if their value is nonzero.  For example, you may only
              want to see the number of flagged messages if such messages
              exist, since zero is not particularly meaningful.  To optionally
              print a string based upon one of the above sequences, the
              following construct is used:

              %?<sequence_char>?<optional_string>?

              where sequence_char is a character from the table above, and
              optional_string is the string you would like printed if
              sequence_char is nonzero.  optional_string may contain other
              sequences as well as normal text, but you may not nest optional
              strings.

              Here is an example illustrating how to optionally print the
              number of new messages in a mailbox:

              %?n?%n new messages.?

              You can also switch between two strings using the following
              construct:

              %?<sequence_char>?<if_string>&<else_string>?

              If the value of sequence_char is non-zero, if_string will be
              expanded, otherwise else_string will be expanded.

              You can force the result of any printf(3)-like sequence to be
              lowercase by prefixing the sequence character with an underscore
              ("_") sign.  For example, if you want to display the local
              hostname in lowercase, you would use: "%_h".

              If you prefix the sequence character with a colon (":")
              character, mutt will replace any dots in the expansion by
              underscores. This might be helpful with IMAP folders that don't
              like dots in folder names.

       status_on_top
              Type: boolean
              Default: no

              Setting this variable causes the "status bar" to be displayed on
              the first line of the screen rather than near the bottom. If
              $help is set, too it'll be placed at the bottom.

       strict_threads
              Type: boolean
              Default: no

              If set, threading will only make use of the "In-Reply-To" and
              "References:" fields when you $sort by message threads.  By
              default, messages with the same subject are grouped together in
              "pseudo threads.". This may not always be desirable, such as in
              a personal mailbox where you might have several unrelated
              messages with the subjects like "hi" which will get grouped
              together. See also $sort_re for a less drastic way of
              controlling this behavior.

       suspend
              Type: boolean
              Default: yes

              When unset, mutt won't stop when the user presses the terminal's
              susp key, usually "^Z". This is useful if you run mutt inside an
              xterm using a command like "xterm -e mutt".

       text_flowed
              Type: boolean
              Default: no

              When set, mutt will generate "format=flowed" bodies with a
              content type of "text/plain; format=flowed".  This format is
              easier to handle for some mailing software, and generally just
              looks like ordinary text.  To actually make use of this format's
              features, you'll need support in your editor.

              Note that $indent_string is ignored when this option is set.

       thorough_search
              Type: boolean
              Default: yes

              Affects the ~b and ~h search operations described in section
              "patterns".  If set, the headers and body/attachments of
              messages to be searched are decoded before searching. If unset,
              messages are searched as they appear in the folder.

              Users searching attachments or for non-ASCII characters should
              set this value because decoding also includes MIME
              parsing/decoding and possible character set conversions.
              Otherwise mutt will attempt to match against the raw message
              received (for example quoted-printable encoded or with encoded
              headers) which may lead to incorrect search results.

       thread_received
              Type: boolean
              Default: no

              When set, mutt uses the date received rather than the date sent
              to thread messages by subject.

       tilde
              Type: boolean
              Default: no

              When set, the internal-pager will pad blank lines to the bottom
              of the screen with a tilde ("~").

       time_inc
              Type: number
              Default: 0

              Along with $read_inc, $write_inc, and $net_inc, this variable
              controls the frequency with which progress updates are
              displayed. It suppresses updates less than $time_inc
              milliseconds apart. This can improve throughput on systems with
              slow terminals, or when running mutt on a remote system.

              Also see the "tuning" section of the manual for performance
              considerations.

       timeout
              Type: number
              Default: 600

              When Mutt is waiting for user input either idling in menus or in
              an interactive prompt, Mutt would block until input is present.
              Depending on the context, this would prevent certain operations
              from working, like checking for new mail or keeping an IMAP
              connection alive.

              This variable controls how many seconds Mutt will at most wait
              until it aborts waiting for input, performs these operations and
              continues to wait for input.

              A value of zero or less will cause Mutt to never time out.

       tmpdir
              Type: path
              Default: ""

              This variable allows you to specify where Mutt will place its
              temporary files needed for displaying and composing messages.
              If this variable is not set, the environment variable $TMPDIR is
              used.  If $TMPDIR is not set then "/tmp" is used.

       to_chars
              Type: string
              Default: " +TCFL"

              Controls the character used to indicate mail addressed to you.
              The first character is the one used when the mail is not
              addressed to your address.  The second is used when you are the
              only recipient of the message.  The third is when your address
              appears in the "To:" header field, but you are not the only
              recipient of the message.  The fourth character is used when
              your address is specified in the "Cc:" header field, but you are
              not the only recipient.  The fifth character is used to indicate
              mail that was sent by you.  The sixth character is used to
              indicate when a mail was sent to a mailing-list you subscribe
              to.

       trash
              Type: path
              Default: ""

              If set, this variable specifies the path of the trash folder
              where the mails marked for deletion will be moved, instead of
              being irremediably purged.

              NOTE: When you delete a message in the trash folder, it is
              really deleted, so that you have a way to clean the trash.

       ts_icon_format
              Type: string
              Default: "M%?n?AIL&ail?"

              Controls the format of the icon title, as long as "$ts_enabled"
              is set.  This string is identical in formatting to the one used
              by "$status_format".

       ts_enabled
              Type: boolean
              Default: no

              Controls whether mutt tries to set the terminal status line and
              icon name.  Most terminal emulators emulate the status line in
              the window title.

       ts_status_format
              Type: string
              Default: "Mutt with %?m?%m messages&no messages?%?n? [%n NEW]?"

              Controls the format of the terminal status line (or window
              title), provided that "$ts_enabled" has been set. This string is
              identical in formatting to the one used by "$status_format".

       tunnel
              Type: string
              Default: ""

              Setting this variable will cause mutt to open a pipe to a
              command instead of a raw socket. You may be able to use this to
              set up preauthenticated connections to your IMAP/POP3/SMTP
              server. Example:

              set tunnel="ssh -q mailhost.net /usr/local/libexec/imapd"

              Note: For this example to work you must be able to log in to the
              remote machine without having to enter a password.

              When set, Mutt uses the tunnel for all remote connections.
              Please see "account-hook" in the manual for how to use different
              tunnel commands per connection.

       uncollapse_jump
              Type: boolean
              Default: no

              When set, Mutt will jump to the next unread message, if any,
              when the current thread is uncollapsed.

       uncollapse_new
              Type: boolean
              Default: yes

              When set, Mutt will automatically uncollapse any collapsed
              thread that receives a new message. When unset, collapsed
              threads will remain collapsed. the presence of the new message
              will still affect index sorting, though.

       use_8bitmime
              Type: boolean
              Default: no

              Warning: do not set this variable unless you are using a version
              of sendmail which supports the -B8BITMIME flag (such as sendmail
              8.8.x) or you may not be able to send mail.

              When set, Mutt will invoke $sendmail with the -B8BITMIME flag
              when sending 8-bit messages to enable ESMTP negotiation.

       use_domain
              Type: boolean
              Default: yes

              When set, Mutt will qualify all local addresses (ones without
              the "@host" portion) with the value of $hostname.  If unset, no
              addresses will be qualified.

       use_envelope_from
              Type: boolean
              Default: no

              When set, mutt will set the envelope sender of the message.  If
              $envelope_from_address is set, it will be used as the sender
              address. If unset, mutt will attempt to derive the sender from
              the "From:" header.

              Note that this information is passed to sendmail command using
              the -f command line switch. Therefore setting this option is not
              useful if the $sendmail variable already contains -f or if the
              executable pointed to by $sendmail doesn't support the -f
              switch.

       use_from
              Type: boolean
              Default: yes

              When set, Mutt will generate the "From:" header field when
              sending messages.  If unset, no "From:" header field will be
              generated unless the user explicitly sets one using the "my_hdr"
              command.

       use_ipv6
              Type: boolean
              Default: yes

              When set, Mutt will look for IPv6 addresses of hosts it tries to
              contact.  If this option is unset, Mutt will restrict itself to
              IPv4 addresses.  Normally, the default should work.

       user_agent
              Type: boolean
              Default: yes

              When set, mutt will add a "User-Agent:" header to outgoing
              messages, indicating which version of mutt was used for
              composing them.

       visual
              Type: path
              Default: ""

              Specifies the visual editor to invoke when the "~v" command is
              given in the built-in editor.

       wait_key
              Type: boolean
              Default: yes

              Controls whether Mutt will ask you to press a key after an
              external command has been invoked by these functions:
              <shell-escape>, <pipe-message>, <pipe-entry>, <print-message>,
              and <print-entry> commands.

              It is also used when viewing attachments with "auto_view",
              provided that the corresponding mailcap entry has a
              needsterminal flag, and the external program is interactive.

              When set, Mutt will always ask for a key. When unset, Mutt will
              wait for a key only if the external command returned a non-zero
              status.

       weed
              Type: boolean
              Default: yes

              When set, mutt will weed headers when displaying, forwarding,
              printing, or replying to messages.

       wrap
              Type: number
              Default: 0

              When set to a positive value, mutt will wrap text at $wrap
              characters.  When set to a negative value, mutt will wrap text
              so that there are $wrap characters of empty space on the right
              side of the terminal. Setting it to zero makes mutt wrap at the
              terminal width.

              Also see $reflow_wrap.

       wrap_headers
              Type: number
              Default: 78

              This option specifies the number of characters to use for
              wrapping an outgoing message's headers. Allowed values are
              between 78 and 998 inclusive.

              Note: This option usually shouldn't be changed. RFC5233
              recommends a line length of 78 (the default), so please only
              change this setting when you know what you're doing.

       wrap_search
              Type: boolean
              Default: yes

              Controls whether searches wrap around the end.

              When set, searches will wrap around the first (or last) item.
              When unset, incremental searches will not wrap.

       wrapmargin
              Type: number
              Default: 0

              (DEPRECATED) Equivalent to setting $wrap with a negative value.

       write_bcc
              Type: boolean
              Default: yes

              Controls whether mutt writes out the "Bcc:" header when
              preparing messages to be sent.  Exim users may wish to unset
              this. If mutt is set to deliver directly via SMTP (see
              $smtp_url), this option does nothing: mutt will never write out
              the "Bcc:" header in this case.

       write_inc
              Type: number
              Default: 10

              When writing a mailbox, a message will be printed every
              $write_inc messages to indicate progress.  If set to 0, only a
              single message will be displayed before writing a mailbox.

              Also see the $read_inc, $net_inc and $time_inc variables and the
              "tuning" section of the manual for performance considerations.


SEE ALSO

       iconv(1), iconv(3), mailcap(5), maildir(5), mbox(5), mutt(1),
       printf(3), regex(7), strftime(3)

       The Mutt Manual

       The Mutt home page: http://www.mutt.org/


AUTHOR

       Michael Elkins, and others.  Use <mutt-dev@mutt.org> to contact the
       developers.

Unix                            September 2002                       muttrc(5)

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