Having an issue with not only the mail retrieval, but the ISA external interface allowing mail from another domain to enter. I have followed a couple tutorials via the web on how to set up a secondary SMTP virtual server and have it relay all it's mail through the first site via exchange. Not sure what else I have to do. I set up another primary domain in DNS with an MX record pointing to the new virtual server. I created another smtp email for a test user and was able to resolve internally, but that is via the same exchange box so not even sure it that's a genuine test. Does anybody have any experience with exchange 2k behind isa and the setup of multiple email domains? If so, I'd love to hear how you set it up and what was done to bypass the ISA rejections I'm getting. BTW, my primary site email works fine. No issues at all. Thanks in advance. Brian Jeppesen Consultant 602.820.5305 <mailto:bjeppesen@xxxxxxxxxxxxxxxxxxx> bjeppesen@xxxxxxxxxxxxxxxxxxx