msmtp is an "SMTP plugin" for Mutt and probably other MUAs (mail user agents).

It forwards mails to an SMTP server (for example at a free mail provider)
which does the delivery.
To use this program, create a configuration file with your mail account(s) 
and tell your MUA to call msmtp instead of /usr/sbin/sendmail.

Features include:
- SMTP AUTH methods PLAIN, LOGIN and CRAM-MD5
  (and DIGEST-MD5 and NTLM when compiled with GSASL support)
- TLS encrypted connections via OpenSSL or GnuTLS libraries
  (including server certificate verification and the possibility to send
  a client certificate)
- IPv6 support
- support for multiple accounts
- sendmail compatible exit codes (which most MUAs understand).

The homepage of this program is http://msmtp.sourceforge.net/

This program is free software; you can redistribute it and/or modify it under 
the terms of the GNU General Public License (see the file COPYING) as published 
by the Free Software Foundation; either version 2 of the License, or (at your 
option) any later version.
