Linux.com

Tam Stillwell writes "The end is near for Exchange 5.5 as Microsoft terminates product support January 1, 2006. For those who haven't already upgraded or switched, the big question is (as always): Microsoft Windows, Linux, Apple OS X or Other? All communities will find more highly regarded solutions for the enterprise than ever before, spanning both Open Source and Commercial worlds: Bynari Insight Server, eGroupWare, FirstClass, Kerio MailServer, Kolab Server, Lotus Notes & Domino, Novell GroupWise, Open-Xchange, and Scalix. Email Battles provides a starting point for your research."