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
Date: 10/03/2010
Time: 8:06:15 a.m.
User: N/A
Computer: SERVER
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

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.

  • How did you move the mailbox store? Is the System Attendant mailbox present and connected? – joeqwerty Mar 9 '10 at 20:33
  • Right clicked on the Mailbox Store and selected the new location then waited for it to move it. The System Attendant mailbox is connected. – user36665 Mar 9 '10 at 21:09
  • Do you have any System Policies that may be referencing the old Mailbox Store location? – joeqwerty Mar 9 '10 at 21:31

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