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.
See the Security page for important security related information.
Our wiki has lots of other great information, including a FAQ.
The current stable GNU Mailman version are 2.1.20 released on 31-Mar-2015. and 3.0.0 (Show Don't Tell) released on 28-Apr-2015.
There are various ways to get in touch with the GNU Mailman Steering Committee, our security contacts, and the Mailman developer and user communities, via IRC and email.
Mailman's lead developer is Barry Warsaw. Core developers are Mark Sapiro, Aurélien Bompard, Florian Fuchs, Terri Oda, Stephen J. Turnbull, Abhilash Raj. We thank all of our great GSoC students and mentors, and the wider Mailman community for contributing to the development of GNU Mailman.
Thanks go out to: