I am running imail server 4.06 on my Win2k server box. When clients attempt to send/recieve mail over the local network, everything works fine. When a remote client tries, they can recieve mail, but if they try to send mail, they get a "host not found" error. Could someone please point me in the right direction, I've checked all the DNS entries on my end and at my ISP and still can't get it working properly. Any help would be appreciated.