Hi, I followed the Falko's excellent How-to and while it seems to be working, I have a quick question: I have created two domains, example.com (our live domain - server name = mail.example.com) and test.com. I've created test users for both domains and everything seems to work just fine for test.com, but not at all for example.com. I'm wondering if this could be because a live mail server already exists for example.com. Could the live DNS records be causing the problem? I'd like to be a bit more sure before I go live with this server - and I'm sure that all the users on the system would appreciate me being a bit more sure too! Thanks for any answers/explanations/pointers to the info so I can read for myself!!!