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...
Riot : Riot allows teams to communicate across a wide range of collaboration apps. If some team members use Riot while others use IRC, Slack or Gitter, Riot ...
GitLab : GitLab is a web-based Git repository manager with wiki and issue tracking features. GitLab offers hosted accounts similar to GitHub, but also allows i...
Radicale : The Radicale Project is a complete CalDAV (calendar) and CardDAV (contact) server solution.
Gitea is a community managed fork of Gogs, lightweight code hosting solution written in Go and published under the MIT license.