The situation is that there is a exchange 5.5 server running on win2k. There is also a win2k Active Directory server that is the current Domain Controller. I have a new win2k3 server that I want to make an exchange 2000 server. The way it stands now is that if a user is added to Active Directory they have to be separately added to the exchange 5.5 box. From what I understand the usernames on AD and exchange 5.5 are the same, but on the exchange box the email address are different so the username could be bob but the email is bgates@xxxxxxxxxxx I could really use some help on how to make the new exchange 2000 box be part of Active Directory and make it so all the user exchange settings copy over like emails and forwards.