Event ID: 9175

The MAPI call 'OpenMsgStore' failed with the following error:
The Microsoft Exchange Server computer is not available.  Either there are network problems or the Microsoft Exchange Server computer is down for maintenance.
The MAPI provider failed.
Microsoft Exchange Server Information Store
ID no: 8004011d-0526-00000000

Ever seen this even error??  
RichardMcLeishAsked:
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RichardMcLeishAuthor Commented:
I check my mailboxes and they are all mounted on my back-end server, but my front-end server mailbox store is not mounted because it doesn't store any mailboxes.  

I didn't start receiving the error messages until I upgraded to Exchange 2003.

Should the mailbox store be mounted on my front-end even though it has no mailboxes?? Could that be whats generating the error message??  

Thank in advance for your help
Richard
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jvuzCommented:
I gave the MS link about this problem, but without any feedback...
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jvuzCommented:
Thanx,

Jvuz
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