Exchange 2007 SP1 Update Rollup 5 - fixes the multiple diversion header issue and Server 2008 web-based OAB distribution issue plus many other fixes.

There have been three bugs in Exchange 2007 SP1 that have been a thorn in my side for a few months now and they are finally fixed in RU5, which can been downloaded here.

#1: KB 949968 - Unified Messaging does not handle the diversion header correctly in Exchange Server 2007 Service Pack 1. I originally posted about it here a while ago. Sweet!

#2: KB 954197 - Exchange 2007 CAS cannot copy the OAB from the OAB share on Windows Server 2008-based Exchange 2007 CCR clusters.

#3: KB 957978 - The OAB generation is unsuccessful and Event IDs 9328 and 9373 are logged in the Application log in a Windows Server 2008-based Exchange 2007 Single-Copy cluster environment.

Of course, there are many other fixes listed in KB 953467, but these are the ones I keep running into out in the field!