My tech exported a mailbox to pst then deleted the mailbox (Exchange 2003) and recreated the box (Exchange 2010 server) and imported all the mail items. Users are having issues emailing that users now. So I did a get-contact on the 2010 server and it states that it object cannot be found on the 2003 server. I am not sure where do I edit Exchange to point to the correct server. I did a clean-mailboxdatabase and replicated ad.