Exchange 2010 SP1 + CU1 for SP1. CAS servers routinely log Event ID 1029 from MSExchange Store Driver. The message is: "Unable to open the OOF history folder <email>, OOF history operation skipped." I cannot clear this error or determine what it means. I was hoping the application of SP1 (conducted this week) would resolve but it has not. Anyone seen this before?

solved by the tools of mfcmapi.exe it's working for us. Deleting an Out of Office Assistant Rule http://technet.microsoft.com/en-us/library/bb508857(EXCHG.65).aspx FYI. below item not found at Exchange 2010 SP1 PR_OOF_History property on the "Freebusy Data" folder of the recipient's mailbox in Online Mode