Use Mailman to setup and maintain mailing lists for your organization! With Mailman, you can moderate the list and allow particpants control of their accounts. Its features include: 

• 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.
• 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) 
• A customizable home page for each mailing list. 
• Support for virtual domains.
• 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. 

Please send mail to websupport@dca.net, or call our office at 888-4-DCANET, if you are interested in Mailman.