Mutt

All mail clients suck. This one just sucks less

Encrypt Messages

Press `P` followed by `e` for encrypt (`s` for sign as well)

Email-related settings:

Setting	Example	Explanation
set from	example@example.com	Set the sender's email address.
set from_display	John Doe	Set the sender's display name.
set use_envelope_from	yes	Use the sender's email address for the envelope.
set use_from	yes	Use the sender's email address as "From" in messages.
set allow_8bit	yes	Allow 8-bit characters in email messages.
set charset	utf-8	Set the character set for emails.
set send_charset	iso-8859-1	Set the character set for sent email messages.
set realname	John Doe	Set the user's real name for outgoing emails.
set envelope_from	yes	Use the envelope sender address for outgoing emails.
set imap_user	john@example.com	Set the IMAP user (email address).
set imap_pass	myIMAPpassword	Set the password for the IMAP server.
set folder	~/Mail	Set the path to the email folder.
set smtp_url	smtp://smtp.example.com	Set the SMTP server URL for outgoing emails.
set smtp_pass	mySMTPpassword	Set the password for the SMTP server.

Email Signature and Encryption:

Setting	Example	Explanation
set signature_file	~/.signature	Set the path to the signature file.
set pgp_auto_decode	yes	Automatically decode PGP-encrypted messages.
set pgp_autosign	yes	Automatically sign outgoing messages with PGP.
set pgp_autosmime	yes	Automatically encrypt outgoing messages with PGP/SMIME.
set pgp_replyencrypt	yes	Encrypt replies with PGP when the recipient has a PGP key.
set pgp_replysign	yes	Sign replies with PGP.
set pgp_replysignencrypted	yes	Sign encrypted replies with PGP.
set pgp_use_gpgme	yes	Use the GPGME library for PGP functionality.
set pgp_verify_sig	yes	Verify PGP signatures for incoming messages.

Email Handling:

Setting	Example	Explanation
set copy	"=drafts"	Copy a message to the specified folder.
set mbox_type	Maildir	Set the type of mbox for email folders.
set move	"=archive"	Move messages to the specified folder.
set new	"400"	Set the time (in seconds) a message is "new".
set postpone	"=later"	Move messages to be sent later to the specified folder.
set record	"=archive"	Copy messages to the specified folder upon sending.
set sort	date-received	Sort email by date received.
set sort_aux	from	Additional sorting key after sender.
set sort_browser	yes	Enable sorting in browser mode.
set sort_re	yes	Re-sort when replying/forwarding.
set sort_threads	yes	Sort email threads.
set strict_threads	yes	Use strict email thread grouping.
set pipe_decode	yes	Decode piped messages.
set delete	yes	Allow deletion of messages.
set markers	"=flagged"	Use flags to mark messages.
set quote_regexp	"^(>[[:space:]]?)"	Set the pattern to quote previous messages.
unset reply_self		Disable replying to oneself.

Email Lists and Filtering:

Setting	Example	Explanation
set hdr_order	"From: To: Subject: Date:"	Set the order of header fields to display.
set ignore	"*.spam"	Ignore messages matching the specified pattern.
set alias_file	"~/.mutt/aliases"	Set the path to the alias file for email lists.
set search_headers	yes	Search specific header fields when searching for email.
set text_flowed	yes	Set if text flowed is supported in email messages.

PGP/SMIME-related settings:

PGP Settings:

Setting	Example	Explanation
set pgp_sign_as	"John Doe john@example.com"	Set the PGP key to use for signing.
set pgp_timeout	3600	Set the timeout (in seconds) for PGP operations.
set pgp_verify_key	"0xDEADBEEF"	Set the PGP key used for key verification.
set pgp_mime_good_signers	yes	Allow PGP signatures from known senders.

S/MIME Settings:

Setting	Example	Explanation
set smime_default_key	"john@example.com"	Set the default S/MIME key for encryption.
set smime_get_cert_command	"smime_getcert"	Set the command to fetch S/MIME certificates.
set smime_get_crl_command	"smime_getcrl"	Set the command to fetch S/MIME CRL.
set smime_replyencrypt	always	Encrypt replies with S/MIME on every occasion.

General Functions:

Setting	Example	Explanation
set editor	"vim"	Set text editor for composing emails.
set pager_index_lines	10	Set the number of lines to display per screen in index mode.
set pager_stop	yes	Stop at page boundaries during scrolling.
set visual	"vim"	Set text editor for viewing email messages.
set wait_key	yes	Wait for keypress to continue.
set quit	"yes: "	Set a prompt message upon quitting.
set print	"lpr"	Set the command for printing email messages.
set resolve	yes	Automatically resolve names to email addresses.
set include	"~/.mutt/muttrc_extra"	Set the path to an additional configuration file to include.
set query_command	"contacts_query %s"	Set the command to query contacts.
set macro	"z" "l=10"	Set macro definitions for quick commands.

Formatting and Presentation:

Setting	Example	Explanation
set status_format	"[%r%m messages. %f/%t]"	Set the format for the status line.
set header_cache	"~/.mutt/cache/headers"	Set the path to the cache file for headers.
set message_cachedir	"~/.mutt/cache/bodies"	Set the path to the directory where messages are cached.
set mailcap_sanitize	"text/html; lynx -dump -stdin"	Set the command for displaying HTML email as text.
set forward_format	"Fwd: %s"	Set the format for forwarded email subjects.
set charset-hook	"utf-8 :utf8:noconv"	Set character conversion settings for email.
set header_format	"From: %f%(%n%)nSubject: %snDate: %dn"	Set the format for displaying header fields.

Miscellaneous:

Setting	Example	Explanation
set abort_noattach	yes	Abort sending if no attachments are included.
set pager_filter	"spamassassin"	Set the filter command to use when viewing email messages.
set status_on_top	yes	Show the status line on top of the email list.
set status_chars	"[!`~]"	Set characters indicating different status levels.
set pipe_separator	"----ENCRYPTED MESSAGE----"	Set the separator for piped messages.
set pipe_decode_cmd	"gpg –decrypt"	Set the command for decoding piped messages.
set escape	"H"	Set the character to return to the main menu.
set escape_timeout	10	Set the timeout (in seconds) to return to the main menu.
set from_valias	yes	Enable virtual alias for sending address.
set edit_headers	"From Cc Bcc"	Set which header fields to edit when sending.
set markers	"yes"	Enable markers for replies and forwards.
set noignore	yes	Disable ignoring email lists.
set imap_authenticators	"GSSAPI"	Set the authentication mechanism for IMAP server.
set url_view_command	"firefox"	Set the command to open URLs.
set action	"quit =ask-yes"	Set alternative actions for quitting.

General Settings:

Setting	Example	Explanation
set sleep_time	0	Time (in seconds) to wait between IMAP operations.
set timeout	3	Time (in seconds) to wait for the IMAP server.
set beep	yes	Play a sound when a new message is received.
set beep_new	yes	Play a sound only for new messages.
set tilde		Allow "~" as a special character in IMAP search strings.
set pager_index_lines	5	Number of lines to display in index mode.
set pager_context	5	Number of lines to display in surrounding context.
set menu_scroll		Use menu for scrolling in email messages.
set reverse_name		Use reverse name format in email addresses.
set quit	ask-yes	Ask for confirmation upon quitting.
set delete	ask-yes	Ask for confirmation before deleting emails.
set print	ask-yes	Ask for confirmation before printing emails.

Editing Settings:

Setting	Example	Explanation
set editor	vim -c 'set syntax=mail ft=mail enc=utf-8'	Set the text editor for composing emails.
set indent_str	"> "	Set the character sequence for quoting in replies.
unset edit_headers		Disable editing of header fields when sending.

Search and Filtering Settings:

Setting	Example	Explanation
set thorough_search		Enable thorough search in all email messages.
set simple_search	~f %s \| ~C %s \| ~s %s	Set simple search pattern for quick email search.
set quote_regexp	"^(>[[:space:]]?)"	Set the pattern for identifying quoted sections.
set markers	no	Disable markers for replies and forwards.
unset confirmappend		Disable confirmation for attaching files.
unset mark_old		Disable marking of old messages.

Viewing and Formatting Settings:

Setting	Example	Explanation
set attribution	* %n <%a> [%{%Y-%m-%d %H:%M:%S %Z}]:n	Set the format for displaying email attributes.
set visual	vim	Set the text editor for viewing email messages.
set status_on_top		Show the status line on top of the email list.
set nouse_domain		Disable the use of the domain in email addresses.
set pager_stop	yes	Stop at page boundaries during scrolling.

Resource(s)