Mailman Features

• Web based list administration for nearly all tasks, including list configuration, moderation (post approvals), management of user accounts.
• Web based subscribing and unsubscribing, and user configuration management. Users can temporarily disable their accounts, select digest modes, hide their email addresses from other members, etc.
• A customizable home page for each mailing list.
• Through-the-web list creation and removal (with automatic support depending on the MTA).
• Per-list privacy features, such as closed-subscriptions, private archives, private membership rosters, and sender-based posting rules.
• Multi-lingual support: list web pages and email notices can be in any supported language, configurable per-site, per-list, and per-user.
• Configurable (per-list and per-user) delivery mode
  • Regular (immediate) delivery
  • MIME digest
  • Plain (RFC 1153) digests
• Integrated bounce detection within an extensible framework. Automatic disposition of bouncing addresses (disable, unsubscribe).
• Integrated spam filters and MIME-based content filters.
• Automatic web-based Hypermail-style archiving, with hooks for external archivers such as MHonArc.
• Integrated Usenet gatewaying.
• Integrated auto-replies.
• Majordomo-style email based commands.
• Multiple list owners and moderators are possible.
• Support for virtual domains.
• Runs on GNU/Linux and most Un*x-like systems, compatible with most web servers and browsers, and most SMTP servers. Requires Python 2.1 or newer.
• An extensible mail delivery pipeline.
• High-performance mail delivery, with a scalable architecture.