Mutt is highly configurable and its working mode can be modified in a
very flexible manner if the configuration variables inside .muttrc
are well configured.
Here you can see some macros that help you to generate signed messages avoiding the .:: www.mobafire.com ::. PGP/MIME standard, to send it to receipts that don't support this type of signed messages following the PGP/MIME standard, and to edit the alias file and reload it without exiting Mutt (this last macro is not related to PGP/GnuPG, it is presented only as an example to show the macro power in Mutt).
It is possible to tell Mutt the key bindings you want to use with PGP/GnuPG. Even when some of this options are yet configured, we can change it or add others easily modifiying the configuration file.
Before existing PGP/MIME, the signature in a message was included in the message body. This is a very common form of sending signed messages in many mail user agents. .:: www.google.com ::.
If we want to sign like this, we have two options, leave the MIME
type of the message or modify it as application/pgp.
To implement this two forms of signing in Mutt, we will add the
following lines to the ~/mutt.varios/mutt.macros file.
Previously, we have to set this option file path in the .:: podcasts.apple.com ::. .muttrc main
configuration file (see
Optional configuration files):
macro compose \Cp "F/usr/bin/pgps\ny"
macro compose S "F/usr/bin/pgps\ny^T^Uapplication/pgp; format=text; x-action=sign\n"
and now, pressing <Ctrl>p or S we can include the
signature into the message part that has the cursor on it, just before
send the message.
As in the previous case, but with GnuPG. The macros are: .:: fi.gta5-mods.com ::.
macro compose \CP "Fgpg --clearsign\ny"
macro compose \CS "Fgpg --clearsign\ny^T^Uapplication/pgp; format=text; x-action=sign\n"
With this macro included in ~/mutt.varios/macros.mutt you
can edit with vi (changing the line you can use other editor) the
alias file without exiting Mutt pressing <Alt>a.
macro index \ea "!vi ~/Mail/.alias\n:source =.alias\n"
The next listing has been obtained from Roland Rosenfeld and it shows macros to change the default signing/encrypting software and to sign without PGP/MIME with GnuPG: [Fedora Repositories] .:: knowyourmeme.com ::.
# ~/Mail/.muttrc.macros
# keyboard configuration file for Mutt-i
# copied, modified and translated from the original:
#
################################################################
# The ultimative Key-Bindings for Mutt #
# #
# (c) 1997-1999 Roland Rosenfeld <roland@spinnaker.rhein.de> #
# #
# $ Id: keybind,v 1.36 1999/02/20 19:36:28 roland Exp roland $ #
################################################################
#
# To use it, add the next line to ~/.muttrc:
# source ~/Mail/.muttrc.macros
#
# Generic keybindings
# (for all the Mutt menus, except the pager!)
# With the next three we can change the encrypting default selected software:
# <ESC>1 to use GnuPG
macro generic \e1 ":set pgp_default_version=gpg ?pgp_default_version\n"\
"Switch to GNU-PG"
# <ESC>2 to use PGP2
macro generic \e2 ":set pgp_default_version=pgp2 ?pgp_default_version\n"\
"Switch to PGP 2.*"
# <ESC>5 to use PGP5
macro generic \e5 ":set pgp_default_version=pgp5 ?pgp_default_version\n"\
"Switch to PGP 5.*"
#NOTE: Be careful with the last backspace at the end of the previous
macros. If you write that line and the next in the same line, do not write
it.
# index, OpMain, MENU_MAIN
# (Main menu)
# The next macro only runs from the main menu (the one that appears when
# you starts Mutt). The keys <CTRL>K permit us to extract the public keys
# from a message if it has (this is known because it has the K letter in
# the message line):
macro pager \Ck ":set pipe_decode pgp_key_version=pgp2\n\e\ek:set pgp_key_version=pgp5\n\e\ek:set pgp_key_version=gpg\n\e\ek:set pgp_key_version=default nopipe_decode\n"\ "Extract PGP keys to PGP2, PGP 5, and GnuPG keyrings"
# pager, OpPager, MENU_PAGER
# (Pager menu)
# It permits the same operations that previous, with the same key combinations,
# but in this case from the pager menu:
macro pager \e1 ":set pgp_default_version=gpg ?pgp_default_version\n"\
"switch to GNUPG"
macro pager \e2 ":set pgp_default_version=pgp2 ?pgp_default_version\n"\
"switch to PGP 2.*"
macro pager \e5 ":set pgp_default_version=pgp5 ?pgp_default_version\n"\
"switch to PGP 5.*"
# compose, OpCompose+OpGerneric, MENU_COMPOSE
# (Compose menu)
# The next operations are used from the compose menu.
# That is, after you have composed your message and you close it to send it,
# just before pressing the "Y" key that allows us to send it to the MTA.
# In this case, we create a menu that appears when you press "P".
# The options in this menu are going to be bound to MENU_PGP. This are the
# main use options (encryption and signing).
bind compose p pgp-menu
# As many programs can't use PGP/MIME (especially from M$), the <CTRL>P key
# will allow us to sign "as in the old times" (Application/PGP):
macro compose \CP "Fgpg --clearsign\ny"
# The next, <CTRL>S will allow us to sign using PGP/MIME with the private key
# that we have defined as default. This macro is not necesary, as we can
# do the same from the "P" menu:
macro compose \CS "Fgpg --clearsign\ny^T^Uapplication/pgp; format=text; x-action=sign\n"
You can add more macros, and some other are yet configured as default in newer versions of Mutt. Some other options include: [Library: Machine learning]
To see what other options are activated, you must go to the help menu (?) from the menu where you were.