We have a basic NT 4.0 domain with an Exchange 5.5 server. We have 3 users who currently have pop accounts added to their Outlook and it works fine. However, I'm trying to add 2 more POP accounts to other Outlook clients. I'm not sure how they originally got it to work, but I'm not having any luck. I looked at the 3 clients whos POP accounts do work and put those same settings into the 2 new users but it doesn't work. My thoughts are that there must be some kind af static mapping to the exchange server. Does anyone have any ideas?