.muttrc

set from = "username@yourdomain.com"
set realname = "YourRealName"
set imap_user = "username@yourdomain.com"
#set imap_pass = "yourpassword" set folder = "imaps://imap.yourdomain.com:993"
set spoolfile = "+INBOX"
set postponed ="+[Mail]/Drafts"
set header_cache =~/.mutt/cache/headers
set message_cachedir =~/.mutt/cache/bodies
set certificate_file =~/.mutt/certificates
set smtp_url = "smtp://username@yourdomain.com@smtp.yourdomain.com:587/"
#set smtp_pass = "yourpassword"
set move = no 
set imap_keepalive = 900
set editor = "vim"
my_hdr From: YourRealName<username@yourdomain.com>
my_hdr Reply-To: YourRealName<username@yourdomain.com>

bind index G imap-fetch-mail

unset user_agent

# SSL hardening
# Knowledge from [GPG / Mutt / Gmail](https://gist.github.com/bnagy/8914f712f689cc01c267)
#set ssl_force_tls=yes
#set ssl_starttls=yes
#set ssl_use_sslv2=no
#set ssl_use_sslv3=no
#set ssl_use_tlsv1=no
#set ssl_use_tlsv1_1=no
#set ssl_use_tlsv1_2=yes
#set ssl_verify_dates=yes
#set ssl_verify_host=yes

# using gpg for mutt 
source $HOME/.gpg.rc