Yes, I know, I thought $10 for a one-trick-pony was a bit steep too. But...it's not. I messed around with Postfix documentation and tutorials all day, and could not get the thing to work properly. So, after realizing it was probably going to take me a better part of a week to learn enough about UNIX and Postfix to get it working, I gave in and shelled out the $10.

Boy, was it worth it. Five minutes after I downloaded the program, I had a fully functional mailserver working on my Mac.

The online documentation and program interface could be a little clearer--I'm lucky I spent so much time reading Postfix docs, so I could understand better what Postfix Enabler was doing. But really, it does what a Mac program should do...It Just Works.