Dada Mail : Dada Mail is a Contemporary Mailing List Manager, enabling you to easily run a verified mailing list that your subscribers can trust, right on your ow...
Cachet : Beautiful & simple service statuses. The open source status page system, for everyone.
Ampache : Ampache is a web based audio/video streaming application and file manager allowing you to access your music & videos from anywhere, using almost any i...
Postal : Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready f...
Maily Herald is a Ruby on Rails engine that helps you send and manage your mailings.
Think of Maily as a self-hosted Mailchimp® you can easily integrate with your site.