.muttrc

# IMAP server Login
set spoolfile=imaps://yourdomain.com/INBOX
set imap_user=your.email.id@yourdomain.com

mailboxes = imaps://yourdomain.com/INBOX
set imap_check_subscribed

# Useful if you use the sidebar-patched mutt
set sidebar_width= 30
set sidebar_visible= yes 
color sidebar_new yellow default
color progress default magenta
color sidebar cyan default
bind index <left> sidebar-prev
bind index <right> sidebar-next
bind index <space> sidebar-open
bind index <Esc>S sidebar-toggle
set sort_sidebar=unsorted

# For more info, see mutt documentation