Hi, I am still using Exchange 5.5. A dns was installed, that manages our name.com domain. We also have an external server (accessible via internet) that is listening port 25, and that manages myname.name2.com Thus, the question is : how can I configure exchange 5.5 in order to ask him to relay any emails from myname.name2.com ? (or is it via dns... W2000...or via Routing) Please help me... I am sure this is a single thing to do... but where ? Regards, Dini