I've spent many hours screwing with Exim on ded server I was using to do shared hosting. Every few weeks I had to worry about open relays and spam blacklists.

I've spent many hours screwing with Exim on ded server I was using to do shared hosting. Every few weeks I had to worry about open relays and spam blacklists. I know if I spent more time I could learn how to stop those, but I would rather spend my time coding instead of admin'ing a mail server.