Hello, I'm having a bit of trouble with aliased domains and firewalled clients on a box with about 30 domains. From what I can tell, the problem is due to a user behind a firewall opening up a pop session to his mail server (mail.domain.com). This is fine, except for the fact that the return packets come from the main ethernet address, rather than the aliased one, so the return comes from mail.isp.com, thus breaking any sort of NAT connection, or at least hindering it. What can I do to make it so that the requests receive their replies from the proper IP? If any more info is needed, or I just sound like a crackhead who doesn't know what they're talking about, let me know, and I'll try to be more clear. Thanks, Aaron