I'm running my IP through a router. After installation, it appears that postfix won't start up. I get a message stating that there's no local interface for my external IP address. My external IP address should not even be making it to my server. Instead, I should be seeing my internal IP.
I'm going to play a bit more tomorrow evening after I'm a bit more rested. But between now and then, if someone has a suggestion, I would not turn it down.