Recently we moved our Exchange 2003 (SP2) database from one drive to another. Now every other day or so we get errors coming up in the event log:
Event Type: Error
Event Source: MSExchangeSA
Event Category: MAPI Session
Event ID: 9175
Time: 8:06:15 a.m.
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.
Restarting the Exchange Information Store fixes this instantly, but until we do it Outlook won't connect to Exchange and Blackberry emails aren't pushing out.