\\FS0\Microsoft Exchange Mailboxes Database or database element is corrupt

I am getting this given  error in veritas backup exec
backup failed ''\\FS0\Microsoft Exchange Mailboxes Database or database element is corrupt''
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kunalclkAsked:
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honmapogCommented:
Loads of people on this site will tell you that you shouldn't do Mailbox backups (a.k.a. brick level backups). Instead, only back up "Microsoft Information Store" and use the Exchange deleted items retention to allow for retrieval of recently deleted email.
If you use Exchange 2003, you can then use the recovery storage group to restore individual mailboxes from the information store backup. Just be aware that you need enough space on your disk to restore the complete Information Store.

Now lets get to your problem: if you look at the Backup Exec job log, are most mailboxes getting backed up and is this problem only related to certain mails in certain mailboxes?
If that's the case, try to find the emails in the user's mailboxes and just delete those that are "corrupt".
There are reports that Microsoft patch KB931832  causes these problems as well: https://forums.symantec.com/syment/board/message?board.id=103&thread.id=54973&view=by_date_ascending&page=1

If none of this works, run a consistency check against the database using isinteg: http://support.microsoft.com/kb/301460/
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