Example working muttrc

.muttrc

# Paths ----------------------------------------------
source ~/.mutt/acme1_config
source ~/.mutt/acm2_config
source ~/.mutt/acme3_config
macro index <F1> '<sync-mailbox><enter-command>source ~/.mutt/acme1_config<enter><change-folder>!<enter>'
macro index <F2> '<sync-mailbox><enter-command>source ~/.mutt/acme2_config<enter><change-folder>!<enter>'
macro index <F3> '<sync-mailbox><enter-command>source ~/.mutt/acme3_config<enter><change-folder>!<enter>'

# Basic Options --------------------------------------
set wait_key = no          # shut up, mutt
set mbox_type = "maildir"  # mailbox type
set timeout = 3            # idle time before scanning
set mail_check = 0         # minimum time between scans
unset move                 # gmail does that
set delete                 # don't ask, just do
unset confirmappend        # don't ask, just do!
set quit                   # don't ask, just do!!
unset mark_old             # read/new is good enough for me
set beep_new               # bell on new mails
set pipe_decode            # strip headers and eval mimes when piping
set thorough_search        # strip headers and eval mimes before searching
set envelope_from
set smart_wrap
set check_new = yes

# Advanced Options ------------------------------------
unset arrow_cursor
unset beep
unset beep_new
unset menu_scroll
unset mark_old
unset collapse_unread
unset mark_old
unset ignore_list_reply_to
set narrow_tree
set help
set copy=yes
set delete=yes
set move=no
set forward_quote=yes
set include=yes
set reverse_name
set ascii_chars=yes
set reverse_realname=yes
set reverse_alias=yes
set fast_reply=yes
set confirmappend=no
set pager_index_lines=15
set markers
set smart_wrap
set pager_context=5
set pager_stop = yes
set status_on_top
set sort = 'threads'
set strict_threads
set sort_aux = 'last-date-received'
set tilde
set sig_dashes
set editor="vim +/^$ ++1 -c 'set tw=76 expandtab nosmartindent spell'"
set header_cache="~/.mutt/headers"
bind editor <Tab> complete-query
bind index gg first-entry
bind index G last-entry
bind pager A group-reply
auto_view text/html
alternative_order text/calendar text/plain text/html
auto_view text/calendar application/ics
#macro index,pager a "<pipe-message>goobook add<return>" "Add the sender address to Google contacts"

# Sidebar Patch --------------------------------------
set mail_check_stats = yes
set sidebar_divider_char = ' |'
set sidebar_visible = yes
set sidebar_width   = 60
set sidebar_short_path = yes
set sidebar_format = "%B%?F? [%F]?%* %?N?%N/?%S"
set sidebar_folder_indent = yes
set sidebar_indent_string = "...."
color sidebar_indicator default color17         # Dark blue background
color sidebar_highlight white   color238        # Grey background
color sidebar_spoolfile yellow  default         # Yellow
color sidebar_flagged   red     default         # Red
color sidebar_divider   color8  default         # Dark grey
color sidebar_new brightblue default

bind index,pager \CN sidebar-next
bind index,pager \CP sidebar-prev
bind index,pager \Ca sidebar-open

# Status Bar -----------------------------------------
set status_chars  = " *%A"
set status_format = "───[ Folder: %f ]───[%r%m messages%?n? (%n new)?%?d? (%d to delete)?%?t? (%t tagged)? ]───%>─%?p?( %p postponed )?───"
#
# Header Options -------------------------------------
ignore *                                # ignore all headers
unignore from: to: cc: date: subject:   # show only these
unhdr_order *                           # some distros order things by default
hdr_order from: to: cc: date: subject:  # and in this order

# Index View Options ---------------------------------
#set date_format = "%m/%d/%y"
set index_format = "[%Z]  %-40.40D  %-70.70F  %s"
set sort = threads
set sort_browser = date
set sort_aux = reverse-last-date-received
set uncollapse_jump                        # don't collapse on an unread message
set reply_regexp = "^(([Rr][Ee]?(\[[0-9]+\])?: *)?(\[[^]]+\] *)?)*"

# Formating
set compose_format="-- %v-- Compose  [Approximate Message Size: %l   Attachments: %a]%>-"
set attach_format="%u%D%I %t%4n %T%.40d%> [%.7m/%.10M, %.6e%?C?, %C?, %s] "
set alias_format="%4n %2f %t %-12a  %r"
set status_format="-%r-%v--[%?M?%M/?%m msgs%?n?, %n new?%?d?, %d del?%?F?, %F flag?%?t?, %t tag?%?p?, %p postp?%?b?, %b inc?%?l?, %l?]--(%f)--%s-%>-%P-"
set folder_format="%3C %t%N %F %-8.8u %-8.8g %8s %d %f"
set message_format="%-.16n: %s"
set pager_format="~~~~~~~~~ On %{%a, %d %b %Y} at [%[%H:%M]]: %s %|~"
set attribution='On %{%a, %d %b %Y}, %n wrote:\n'
set forward_format = "[%s]"

# Colours
#
color normal brightyellow default
color error red default
color tilde black default
color message cyan default
color markers red white
color attachment white default
color search brightmagenta default
color status brightyellow black
color indicator brightblack yellow
color tree yellow default

# Basic monocolor screen

mono bold bold
mono underline underline
mono indicator reverse
mono error bold

# Index

color index red default "~A" # all messages
color index brightred default "~E" # expired messages
color index blue default "~N" # new messages
color index blue default "~O" # old messages
color index brightmagenta default "~Q" # messages that have been replied to
color index brightgreen default "~R" # read messages
color index blue default "~U" # unread messages
color index blue default "~U~$" # unread, unreferenced messages
color index brightyellow default "~v" # messages part of a collapsed thread
color index brightyellow default "~P" # messages from me
color index cyan default "~p!~F" # messages to me
color index cyan default "~N~p!~F" # new messages to me
color index cyan default "~U~p!~F" # unread messages to me
color index brightgreen default "~R~p!~F" # messages to me
color index red default "~F" # flagged messages
color index red default "~F~p" # flagged messages to me
color index red default "~N~F" # new flagged messages
color index red default "~N~F~p" # new flagged messages to me
color index red default "~U~F~p" # new flagged messages to me
color index black red "~D" # deleted messages
color index brightcyan default "~v~(!~N)" # collapsed thread with no unread
color index yellow default "~v~(~N)" # collapsed thread with some unread
color index green default "~N~v~(~N)" # collapsed thread with unread parent
color index red black "~v~(~F)!~N" # collapsed thread with flagged, no unread
color index yellow black "~v~(~F~N)" # collapsed thread with some unread & flagged
color index green black "~N~v~(~F~N)" # collapsed thread with unread parent & flagged
color index green black "~N~v~(~F)" # collapsed thread with unread parent, no unread inside, but some flagged
color index cyan black "~v~(~p)" # collapsed thread with unread parent, no unread inside, some to me directly
color index yellow red "~v~(~D)" # thread with deleted (doesn't differentiate between all or partial)

# Message Headers

color hdrdefault brightgreen default
color header blue default "^(From)"
color header blue default "^(Subject)"

# Body

color quoted blue default
color quoted1 cyan default
color quoted2 yellow default
color quoted3 red default
color quoted4 brightred default

color signature brightgreen default
color bold black default
color underline black default
color normal default default

# PGP
set pgp_sign_as = YOURKEYHERE
set crypt_use_gpgme=yes
set crypt_autosign=yes
set crypt_verify_sig=yes
set crypt_replysign=yes
set crypt_replyencrypt=yes
set crypt_replysignencrypted=yes
# This next line is an example of adding a custom header to your emails
# and should be adjusted, or removed, accordingly
my_hdr OpenPGP: url=http://acme.org/YOURKEY.ASC\; id=YOURKEY
color body red default "(BAD signature)"
color body cyan default "(Good signature)"
color body brightblack default "^gpg: Good signature .*"
color body brightyellow default "^gpg: "
color body brightyellow red "^gpg: BAD signature from.*"
mono body bold "^gpg: Good signature"
mono body bold "^gpg: BAD signature from.*"

# URL Regex

color body red default "([a-z][a-z0-9+-]*://(((([a-z0-9_.!~*'();:&=+$,-]|%[0-9a-f][0-9a-f])*@)?((([a-z0-9]([a-z0-9-]*[a-z0-9])?)\\.)*([a-z]([a-z0-9-]*[a-z0-9])?)\\.?|[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+)(:[0-9]+)?)|([a-z0-9_.!~*'()$,;:@&=+-]|%[0-9a-f][0-9a-f])+)(/([a-z0-9_.!~*'():@&=+$,-]|%[0-9a-f][0-9a-f])*(;([a-z0-9_.!~*'():@&=+$,-]|%[0-9a-f][0-9a-f])*)*(/([a-z0-9_.!~*'():@&=+$,-]|%[0-9a-f][0-9a-f])*(;([a-z0-9_.!~*'():@&=+$,-]|%[0-9a-f][0-9a-f])*)*)*)?(\\?([a-z0-9_.!~*'();/?:@&=+$,-]|%[0-9a-f][0-9a-f])*)?(#([a-z0-9_.!~*'();/?:@&=+$,-]|%[0-9a-f][0-9a-f])*)?|(www|ftp)\\.(([a-z0-9]([a-z0-9-]*[a-z0-9])?)\\.)*([a-z]([a-z0-9-]*[a-z0-9])?)\\.?(:[0-9]+)?(/([-a-z0-9_.!~*'():@&=+$,]|%[0-9a-f][0-9a-f])*(;([-a-z0-9_.!~*'():@&=+$,]|%[0-9a-f][0-9a-f])*)*(/([-a-z0-9_.!~*'():@&=+$,]|%[0-9a-f][0-9a-f])*(;([-a-z0-9_.!~*'():@&=+$,]|%[0-9a-f][0-9a-f])*)*)*)?(\\?([-a-z0-9_.!~*'();/?:@&=+$,]|%[0-9a-f][0-9a-f])*)?(#([-a-z0-9_.!~*'();/?:@&=+$,]|%[0-9a-f][0-9a-f])*)?)[^].,:;!)? \t\r\n<>\"]"

# get the url view working

macro index \cb |urlview\n 'call urlview to extract URLs out of a message'
macro pager \cb |urlview\n 'call urlview to extract URLs out of a message'

# "h" will take you to the folder list in the index

macro index h "c?t"

# Dump all headers

macro index p "<display-toggle-weed> <print-message> <display-toggle-weed> <exit>"
macro pager p "<display-toggle-weed> <print-message> <display-toggle-weed>"

# Allow space characters in macros

bind editor <space> noop