Hi Guys, Lucky I found this forum, and I hope someone can help. I have just built a SBS2003 machine, which will be deployed into our current domain when I get this last niggly thing out of my head. This is what I want it to do: I have a server with my ISP from which I want to pull emails using POP3 (this is working) and I want to send emails from my network, through my exchange and then to my email server at my ISP (this is not working) I can send emails in the internal test domain, but nothing will reach anywhere outside the domain. Can anyone shed some light on this?