Sun Java System Messaging and Calender Service Java Enterprise System 2005Q1 and later
Lotus Notes (Domino) 6.5, 7.0, 8.0
Microsoft Exchange 2000, 2003, 2007
Microsoft Exchange 2000, 2003, and 2007 are managed through the Active Directory resource adapter.
Microsoft Exchange 2007 is supported on Windows 2003 only.
Novell GroupWise 7.0 (using the Novell NDS adapter)