[lisper]

I started working on this a while back and got as far as writing a collection of scripts that spins up a mail server from scratch and does all the configuration. It's not complete (doesn't include spam filtering or search) and it uses Common Lisp to drive the process, which is the main reason I haven't published it. I didn't think there would be much interest in something that obscure. But if there is interest I'd be happy to clean up the code and put it on github.