When I setup a new Outlook client they are unable to connect to the external Pop3 mail server. I get the message that outlook could not find server. However, all of my existing outlook clients are working. This only happens on new computers as I bring them online. I am able to surf to the web interface of this mail server with no problems. I am not able to ping from the new setup either by ip or name. I thought it might be DNS problem but why do the others work? I thought is might be ISA problem but again why do the pre-existing work? Any suggestions on where to start looking for problem? Outlook client - 2000 or 2002 Exchange 2000 ISA 2000 Windows 2000 Server Pop3 is Ipswitch