I have a 2003 sbs server and I can't get the virtual smtp server to send out email. I am pretty sure its a dns issue, but don't know what to try. I've added/changed the DNS numbers with no luck. I've tried to set up a smarthost, but I don't think it is right. We have an at&t static DSL. In the additional information it says rejected by host. I think I ran into this years ago and I had microsoft log into a different server and they added a microsoft DNS server number to my DNS list. Can anyone help?