I'm trying to restore our Exchange 2007 database from 2009 to search a users mailbox that is no longer with the company. We use BackupExec and the restore is successful. My mailbox comes back fine but I cannot find the mailbox for this user. This user is not in Active Directory anymore and other users who are no longer with them company but were when the backup was take also do not show up. When the backup was take it was in a Windows 2003 domain and now in a Windows 2008 domain.