I have a very simple question but having a hard time finding the answer. When I right click a user in AD and go to properties. I click on the account tab and there is the user logon name. In the field to the right of the name it gives the domain. But there is a drop down list, one is my local-internal domain and the other is our email domain. Not all the users have the same one, they are mixed. What is the difference and which one should I be picking?
Server 2003 SP1 and exchange 2003 SP2