evolution-kolab is a plugin for the Evolution PIM suite to connect to a Kolab groupware server. It lets you use Evolution as a client for Kolab and share appointments, contacts, email messages, and more with other members of your Kolab site.
TNEF Plugin for Evolution is a simple plugin for the Evolution email client to read TNEF attachments (aka "winmail.dat").
A graphical, distributed IRC client.
A powerful and flexible Mail Transport Agent.