At 08:59hrs this morning I got a call from a customer who was unable to receive e-mail. Logging into their server I discovered that there were indeed messages stuck in the Local Delivery queue. I checked the Application event logs and found the following event log
Event Type: Error
Event
Source:
MSExchangeSA
Event
Category:
MAPI Session
Event
ID:
9175
Date:
8/05/2012
Time: 9:12:31
AM
User: N/A
Computer:
***DELETED***
Description:
The
MAPI call ‘OpenMsgStore’ failed with the following error:
The
attempt to log on to the Microsoft Exchange Server computer has
failed.
The
MAPI provider failed.
Microsoft
Exchange Server Information Store
ID
no: 8004011d-0512-00000000
For
more information, click
http://www.microsoft.com/contentredirect.asp.