Affected NV Version: NetVault:Backup 7.x and greater
OS Version: Windows 2000, 2003
Plugin version: Exchange Mailbox APM
Application version: Exchange 2k & 2K3
Exchange mailbox backup - failed to get children of mailbox
The above warning message can be caused by a disabled mailbox. In most practices, mailboxes are disabled for a period of time before removed completely.
Remove the mailbox from the job selections or if all mailboxes are selected then remove it from exchange