Mailman, the GNU Mailing List Manager

Mailman is free software for managing electronic mail discussion and e-newsletter lists. Mailman is integrated with the web, making it easy for users to manage their accounts and for list owners to administer their lists. Mailman supports built-in archiving, automatic bounce processing, content filtering, digest delivery, spam filters, and more. See the features page for details.

Mailman is free software, distributed under the GNU General Public License. Mailman is written in the Python programming language, with a little bit of C code for security.

Please donate to GNU Mailman project. (details)

See the Security page for important security related information, including critical patches and contact information for reporting suspected security vulnerabilities. Also see the Mailman Wiki for the latest information about stable and development versions.

Current Version

The current stable GNU Mailman version is 2.1.20, released on 31-Mar-2015.


Mailman's lead developer is Barry Warsaw who can be contacted barry at list dot org. Mark Sapiro is also a core Mailman developer.

Aurélien Bompard, Florian Fuchs, Terri Oda, Stephen J. Turnbull and a host of GSOC students and mentors are contributing greatly to the development of Mailman 3.

Barry, Mark, and Terri form the Mailman Steering Committee.

Thanks go out to: