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.

The name of this software is spelled Mailman with a capital leading M and a lowercase second m. It is incorrect to spell it "MailMan".

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 2.1.9, released on 12-Sep-2006.


Mailman's lead developer is Barry Warsaw who can be contacted barry at python dot org. Mark Sapiro and Tokio Kikuchi are also core Mailman developers. Thanks go out to Atlassian for their generous hosting of the wiki and bug tracker.

Thanks also go to for their sponsorship of new Mailman 2.1 features, and Zope Corporation for their past support, as well as the list of contributors, bug hunters, big idea people, and others who have helped immensely with Mailman's development.