At 08:59hrs this morning I got a call from a customer who was unable toreceive e-mail. Logging into their server I discovered that there wereindeed messages stuck in the Local Delivery queue. I checked theApplication event logs and found the following event log
EventType:ErrorEventSource:MSExchangeSAEventCategory:MAPI Session EventID:9175Date:8/05/2012Time:9:12:31AMUser:N/AComputer:***DELETED***Description:TheMAPI call ‘OpenMsgStore’ failed with the following error: Theattempt to log on to the Microsoft Exchange Server computer hasfailed.
Read More →