Tring to test and configure exchange 2000. Have a test domain called gifted1 I am trying to test Internet mail. I registered at gifted1.homeisp.net. I can send mail out to the internet but when they reply no mail comes back. The reply address is correct by sending it to someone@gifted1.homeisp.net but no mail makes it to the box. There server is open to all ports for testing and you can ping the name but still no mail comes back to me. at Dyndns.com I have forwarded all traffice mail and web back to the IP. I think I maybe missing something it he exchange setup. Anyhelp would be great. Thanks!