A good-to-go mutt configuration. Replace the four things with your own server's information: SMTPURL, IMAPURL, USERNAME, PASSWORD.

.muttrc

# Paths ----------------------------------------------
set folder           = ~/.mail               # mailbox location
set alias_file       = ~/.mutt/alias         # where to store aliases
set header_cache     = ~/.mutt/cache/headers # where to store headers
set message_cachedir = ~/.mutt/cache/bodies  # where to store bodies
set certificate_file = ~/.mutt/certificates  # where to store certs
set mailcap_path     = ~/.mutt/mailcap       # entries for filetypes
set tmpdir           = ~/.mutt/temp          # where to keep temp files
set signature        = ~/.mutt/sig           # my signature file

# 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

# Sidebar Patch --------------------------------------
set sidebar_delim   = '  │'
set sidebar_visible = yes
set sidebar_width   = 24
color sidebar_new color221 color233

# 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

# view attachment

auto_view text/html
alternative_order text/plain text/enriched text/html


######################################################
# Account Settings -----------------------------------
######################################################

# Personal Information
set realname="REAL NAME"
set from="USERNAME@cs.uoregon.edu"
set use_from=yes

# SMTP
set smtp_url="smtp://USERNAME@SMTPURL:587/"
set smtp_pass="PASSWORD"

# Default inbox.
set spoolfile="imaps://USERNAME:PASSWORD@IMAPURL/"
set folder="imaps://IMAPURL/"


# Mailboxes to show in the sidebar.
mailboxes +INBOX \
          +Sent \
          +Drafts \
          +Flagged \

# Other special folders.
set record="=Sent"
set postponed="=Drafts"

# Index View Options ---------------------------------
set date_format = "%m/%d"
set index_format = "[%Z]  %D  %-20.20F  %s"
set sort = threads                         # like gmail
set sort_aux = reverse-last-date-received  # like gmail
set uncollapse_jump                        # don't collapse on an unread message
set sort_re                                # thread based on regex
set reply_regexp = "^(([Rr][Ee]?(\[[0-9]+\])?: *)?(\[[^]]+\] *)?)*"

# Index Key Bindings ---------------------------------
bind index gg       first-entry
bind index G        last-entry

bind index R        group-reply
bind index <tab>    sync-mailbox
bind index <space>  collapse-thread

# Ctrl-R to mark all as read
macro index \Cr "T~U<enter><tag-prefix><clear-flag>N<untag-pattern>.<enter>" "mark all messages as read"

# Sync email
# macro index O "<shell-escape>offlineimap<enter>"           "run offlineimap to sync all mail"
# macro index o "<shell-escape>offlineimap -qf INBOX<enter>" "run offlineimap to sync inbox"

# Saner copy/move dialogs
macro index C "<copy-message>?<toggle-mailboxes>" "copy a message to a mailbox"
macro index M "<save-message>?<toggle-mailboxes>" "move a message to a mailbox"

macro pager \Cv "urlview" "Follow links with urlview"

# Sidebar Navigation ---------------------------------
bind index,pager <down>   sidebar-next
bind index,pager <up>     sidebar-prev
bind index,pager <right>  sidebar-open


# Pager View Options ---------------------------------
set pager_index_lines = 10 # number of index lines to show
set pager_context = 3      # number of context lines to show
set pager_stop             # don't go to next message automatically
set menu_scroll            # scroll in menus
set tilde                  # show tildes like in vim
unset markers              # no ugly plus signs

set quote_regexp = "^( {0,4}[>|:#%]| {0,4}[a-z0-9]+[>|]+)+"
alternative_order text/plain text/enriched text/html

# Pager Key Bindings ---------------------------------
bind pager k  previous-line
bind pager j  next-line
bind pager gg top
bind pager G  bottom

bind pager R  group-reply

# View attachments properly.
bind attach <return> view-mailcap


###########################
# NOTES
###########################
#

#### Installed softwares
# 1. mutt-patched (on Ubuntu)
# 2. urlview
###########################