Mailman

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. Features: - Through-the-web list creation and removal (with automatic support depending on the MTA) - Multi-lingual support: list web pages and email notices can be in any of nearly two dozen supported language, configurable per-site, per-list, and per-user - "Real name" support for members - 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 - Through the web membership management - Through the web administrative requests pages - Moderated newsgroup support - Flexible moderation and privacy controls - Subscription invitations - Auto-response controls. - User controllable delivery options - Urgent: header support (bypasses digests to reach all users immediately).