I have IIS configured as a SMTP and have it relaying for just my domain and\ndropping any others to elimate relaying. I also have ISA 2000 on the system\nused as the firewall. I have DNS lookup turn on the IIS SMTP. In the IIS logs\nit always shows a RDNS value of 127.0.0.1 no matter what server submits\nemails. What do I have to do in order to get IIS SMTP to look up the actual\nip address instead of 127.0.0.1?