Hello,
Have you tried a backup after excluding those mailboxes? What is the OS on the Exchange server? Is it Windows 2003?
You can install hotfix 47 for Exchange as well as SP 2 for backup exec. Refer to the following links for the same:
Title:9.1.4691 Hotfix 47 - Exchange Mailbox Backups (Backing up Microsoft Exchange mailboxes may cause the backup job to hang) *Requires Backup Exec 9.1.4691 Service Pack 2
http://support.veritas.com/docs/275354
Title:VERITAS Backup Exec (tm) 9.1 for Windows Servers revision 4691 - Service Pack 2
http://support.veritas.com/docs/275247
Try the backup after this. In case the problem persists, revert with details on the problem. Hope this helps.
However in case we do not receive any update from you on this issue within two business days, this post would be marked âassumed answeredâ and would be moved to âanswered questionsâ pool.
Regards.