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 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.
Per-list privacy features, such as closed-subscriptions, private
    archives, private membership rosters, etc.
Configurable (per-list and per-user) delivery mode
    Regular (immediate) delivery
        MIME digest
        Plain (RFC 934) digests
    
Integrated bounce detection within an extensible framework.
    Automatic disposition of bouncing addresses (disable,
    unsubscribe).
Integrated spam 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 most Un*x-like systems, compatible with most web
    servers and browsers, and most SMTP servers.  Requires Python
    1.5.2 or newer (works with Python 1.6 and 2.0).
An extensible mail delivery pipeline.
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