Dear Sir This is the third time to send this message because in error in the subject. My problem is briefed in the following: I am working now in our company with MS Exchange Server 5.5, and we installed a new Exchange server 2000 with a new domain. I want to make a transition time for migration. During this transition time, i want the server 5.5 to send an automatic reply to all messages received (destined to my domain i.e *@mydomain.com) to tell the sender that this mailbox will be changed. Can i configure the server to do that?