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 <https://marlam.de/msmtp>. 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.