I have placed an Edge Transport Server running Exchange 2007 in a DMZ. I currently have an Exchange 2007 running in house for email. My goal is to direct my email coming from the public through the ETS to the internal Exchange server. How do you point your email coming from outside the organization to hit the ETS 1st? What and where do you make the change? I do not understand what directs the email coming from outside to enter and pass through the ETS.