Originally Posted by sems
On our system we had initially Exchange 2003, then we installed Exchange 2007, and our BES install was working fine with calendar sync. Migrated users were running it fine, users staying on Exchange 2003 were fine. The BES server was running with ESM. Can you elaborate on why calendar sync was not supposed to work for Exchange 2007 users?
The issue was caused by a variation (i.e. different file version) in the cdo.dll file.