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'msmtp' is an SMTP client that can be used as an "SMTP plugin" for Mutt and other MUAs. It forwards messages to an SMTP server which does the delivery. Features include various SMTP AUTH methods, TLS-encrypted connections (including server certificate verification and the ability to send a client certificate), support for multiple accounts, and IPv6 support.


User manual available in HTML format from; User manual available in PDF format from


Download version 1.6.3 (stable)
released on 27 November 2015

VCS Checkout



LicenseVerified byVerified onNotes
GPLv3orlaterGenium21 December 2015

Leaders and contributors

Martin Lambers Maintainer

Resources and communication

Audience Resource type URI
Developer VCS Repository Webview
Bug Tracking,Developer,Support E-mail

Software prerequisites

Kind Description
Weak prerequisite GnuTLS 1.2.0 or later *or* OpenSSL 0.9.6 or later (for TLS/SSL support); GNU SASL 0.2.4 or later (for extended authentication features)

This entry (in part or in whole) was last reviewed on 21 December 2015.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.

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