Hi! I am having a problem connecting with Outlook (MAPI) to front-end servers. It can not resolve the username. There is no firewall between the front-end and back-end servers (the front-end servers are used for load balancing). I can connect to the front-end servers using POP or OWA no problem. Just does not work with MAPI. I have not done any registry changes regarding ports since there is no firewall. Maybe I am in error and I must configure the registry to map the ports? The back-end server IS NOT a DC. Any insight would be very appreciated :-) Fred _____________________________________ Frederic Giroux, technical director Niveau3 Inc. IT consultants fgiroux@xxxxxxxxxx www.niveau3.ca 514-352-4782 (ext. 223) 514-352-9126 (fax) 866-477-4782 (toll free)