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Title
MSA log reports: ProcessMailbox Error -2147221233 Invalid mailbox -
Description
When processing mailboxes MSA fails to access some of them and reports in the log file:
12/2/2011 11:33:38 AM CMBMConn::GetMailboxInfo TraceMsg 4808 Retrieving mailbox information (Mailbox: 'LEDN’, Infostore: '36985FF0E90C284FB6749BF45D8278D6', MailboxGUID: '85674A3FDFE1774784D022BBA9B59793').
12/2/2011 11:33:38 AM MSAApp::ProcessMailbox Error -2147221233 Invalid mailbox 'LEDN’ (Infostore GUID: '36985FF0E90C284FB6749BF45D8278D6').
If Calendar sync is used before mail sync then CSA will log the folowing:
CMBMConn::GetMailboxInfo TraceMsg 4808 Retrieving mailbox information (Mailbox: 'LEDN', Infostore: '', MailboxGUID: '').
2/24/2014 4:18:42 PM CMBMAdmin::SyncMailboxInfoEx Error -2147221233 Cannot retrieve the mailbox information.
2/24/2014 4:18:42 PM CMBMAdmin::SyncMailboxInfoEx Error 20 Resume without error -
Cause
This might happen when the mailbox is blank and/or was never used and nobody logged in to the mailbox before.
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Resolution
Stop MSA. Use Outlook and open the affected mailbox. It is a good idea to compose a message or make a change.
Close Outlook, start MSA and verify the agent can process the mailbox.
If multiple users/mailboxes are affected then one can try to automate the procedure.
You might want to have a look at the EMWprof User Guide, it offers a special utility, look for the part called “Updating resource Mailboxes”.
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Additional Information
Usually there is absolutely no need to include empty/blank mailboxes into the synchronization, because there is no data to synchronize. But if such a mailbox is included in the mail sync then the mail agent will consume a mailbox license, even if the mailbox is empty.