Can someone please, please enlighten me. We have a server with IIS which we are using as a SMTP gateway We have another server with Exchange2003 (nearly installed) In my ignorance I though I could just point the Exchange server at the other server I can telnet through the SMTP server from the Exchange server and any client, but I have no idea how to point exchange to send messages out using it. If someone could please give me an insight into where I am confused it would be very much apprieciated Thanks in advance Tony