msmtp is an SMTP client.

In the default mode, it transmits a mail to an SMTP server.

To use this program with your mail user agent (MUA), create a configuration 
file with your mail account(s) and tell your MUA to call msmtp instead of 
/usr/sbin/sendmail.

Features include:
- Sendmail compatible interface (command line options and exit codes)
- Support for multiple accounts
- TLS/SSL support including client certificates
- Many authentication methods
- Support for Internationalized Domain Names (IDN)
- Fast SMTP implementation using command pipelining
- DSN (Delivery Status Notification) support
- SOCKS proxy support

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 3 of the License, or (at your 
option) any later version.
