When migrating from GroupWise to Exchange, the mailbox fails to migrate and the following error message is found in the log file:
05:45:56 [80004005] Unspecified error
05:45:56 Error: The client operation failed.
05:45:56 Component: Microsoft Exchange Server Information Store
05:45:56 Low level error: 000004DD
There may be a mailbox size quota on the target Exchange mailbox for the user specified in the log file.
Increase or remove the mailbox size quota for the user.
