After nearly two years of development, we are happy to announce the release of GNU Mailman 2.1. Mailman is free software that enables users to manage email mailing lists and e-newsletters. Its integrated web interface provides easy-to-use access for list members and list administrators. Mailman supports built-in archiving, automatic bounce processing, content filtering, digest delivery, spam filters, and more.

Mailman 2.1 is fully internationalized, supporting 17 languages out-of-the-box. A summary of additional new features in Mailman 2.1 is outlined below. The NEWS file in the source distribution contains more details about all the new features.

For more information on Mailman, including downloading and installation instructions, please visit one of the following mirror sites:

http://www.list.org
http://www.gnu.org/software/mailman
http://mailman.sf.net

The Mailman developers wish to thank Control.com for their sponsorship of several Mailman 2.1 features, Zope Corporation for their support, and the entire Mailman community for their contributions.

-Barry Warsaw Pythonlabs, Zope Corporation

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• Multi-lingual support for all web pages and Mailman generated email notices, with languages selectable on a per-site, per-list, and per-user basis.

• Through-the-web list creation and removal; (with automatic support depending on the MTA)

• "Real name" support for members

• Improved simple user-task operation (e.g. no passwords required for subscription and unsubscription).

• Support for personalized deliveries and VERP-like message delivery for foolproof bounce detection

• Emergency moderation

• MIME-based content-filtering, with demime/stripmime-like options

• Regular expression based topic-filtering

• Better membership management, including searching

• Re-organized administrative requests pages

• Moderated newsgroup support

• A new architecture for the mail delivery subsystem, removing dependence on cron, resulting in improved responsiveness and scalability

• New moderation and privacy controls

• Invitations

• Autoresponse governors

• Users can now change some delivery options globally, for all lists at a site, including their password, delivery status, real name, and more.

• Improved MIME and I18n support in the archiver

• Addition of a separate "list moderator" role

• Urgent: header support (bypasses digests to reach all users immediately).