Cerberus Helpdesk is an email application which focuses on teams sharing mailboxes. It features Fetch and Retrieve, Super Sorter, and Virtual Community Tools. License: Other/Proprietary License with Source Changes:
A new global notification system provides a reusable service that functionality and plugins can use to get a worker's attention. Workers can now immediately notify any number of people when leaving a comment or note on mail. An attachments cleaner reclaims wasted disk space. Also included are over 60 fixes and improvements from community feedback.