I have Exchange 2007 and all existing email is working fine. I have added a new employee within ADUC and filled in email account and user info. I then went to Exchange Management Console and added a new email account and account was added successfully. I'm doing this procedure the same way I have always done it. Now, when I go to users outlook and select add New Email Account, I notice it Auto Account Setup and I hit next. When I hit next it successfully Esablishes network connection, successfully searches email server settings, however when it gets to Log on server a box pops up asking for credentials. I put in the credentials and it doesn't do anything except ask me for credentials again.