If the following warning is displayed in the EventLog of an Exchange 2010 server, it can be resolved as follows:
Source: MSExchange ADAccess
Event ID: 2937
Process exchange_report.exe () (PID=16736). Object [CN=mavertrieb,OU=Verteiler,OU=Gruppen,OU=XX,DC=XX,DC=XX,DC=en]. Property [ArbitrationMailbox] is set to value [xx.xx.en/Deleted Objects/SystemMailbox{1f05a927-983e-446d-b84e-9cb6ca4173ce}
DEL:c09a4fd5-11a6-4867-8d71-a75259987664] and points to the "Deleted Items" container in Active Directory. This property must be corrected as soon as possible.
Start ADSI-Edit and connect to the "Default naming context". Then search for the corresponding object and empty the "msExchArbitrationMailbox" attribute.
The warning can occur if the system mailboxes have been recreated, how the system mailboxes are recreated is described here:
