From https://help.ubuntu.com/community/MuttAndGmail

new_gist_file

#======================================================#
# Boring details
set realname =john
set from = [email protected]
set use_from = yes
set envelope_from ="yes"
set sendmail="/usr/bin/msmtp"

# If not set in environment variables:
set spoolfile = /var/spool/mail/john

#======================================================#
# Folders
set folder="~/Mail"                # Mailboxes in here
set record="+sent"                 # where to store sent messages
set postponed="+postponed"         # where to store draft messages
set move=no                        # Don't move mail from the spool.

#======================================================#
# Watch these mailboxes for new mail:
mailboxes ! +Fetchmail +slrn +mutt
set sort_browser=alpha    # Sort mailboxes by alpha(bet)

#======================================================#
# Order of headers and what to show
hdr_order Date: From: User-Agent: X-Mailer \
          To: Cc: Reply-To: Subject:
ignore *
unignore Date: From: User-Agent: X-Mailer  \
         To: Cc: Reply-To: Subject:
               
#======================================================#
# which editor do you want to use? 
# vim of course!
set editor="vim -c 'set tw=70 et' '+/^$' " 
set edit_headers          # See the headers when editing

#======================================================#
# Aliases

set sort_alias=alias     # sort aliases in alpha order by alias name

#======================================================#
# Odds and ends
set markers          # mark wrapped lines of text in the pager with a +
set smart_wrap       # Don't wrap mid-word
set pager_context=5  # Retain 5 lines of previous page when scrolling.
set status_on_top    # Status bar on top.
push <show-version>  # Shows mutt version at startup