Category Archives: Exchange Server 2010

Get-LogonStatistics not showing RPC Sessions

Last time I tried to troubleshoot some Throttling-Policy Limitations at customers side with Exchange 2010 and Outlook 2007. OK, what to do first? Yes, you will try to count the open active RPC / MAPI Session with following PS command:

So, what was the outcome? There was no open Session even the Outlook Account was active and working on the Exchange CAS Server. What was the solution? Yeah, quite simple – Remove / Replace the Outlook Profile :-)


Get-CalendarProcessing results in error: AccountDisabledException

This is a result because Exchange did not recognized that a disconnected mailbox already has been reconnected to a AD User. This seems to beĀ  a bug in Exchange 2010 SP2 RU1 and should be fixed in RU3 .

As Workaround for immediate success run:

Clean-Mailboxdatabase DBNAMExxx


Update Rollup 5 for Exchange Server 2010 Service Pack 2 (KB2719800)

So, finally we get rid of an bug introduced in Rollup 3 for Service Pack 2

Following (cosmetic) error in event-Log showed up on each Client Access Server with Event-ID 1 –> “Unhandled Exception “User setting ‘PreferredSite’ is not available.”

The Download

The RU3 Error: