BrightStor ARCserve Backup
[05/11/2009-21:06:19 ,0,0,0,0,0,2,0,0,0] AW9621 Failed to back up 1 mailboxes.
Backup Operation Incomplete with the above error massage.
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Resolution:
On Active Directory Users and Computers you need to check for failed mailboxes and make sure that they are not disabled/deleted. If they are disabled you need to modify job to exclude those mailboxes from your BrightStor ARCserve Backup job.