With every solution that comes along to solve the "host your own email" problem, and every guide that takes you step-by-step, I always find myself just wanting a huge wiki-style site with all the topology of a good, secure email/groupware server explained in plain English rather than a package that purports to do it all for me. Something with breakdowns/discussion about the different options that exist for the different pieces that make up the whole.
It's one thing to easily obtain my own personal mail server, it's another entirely to understand and be able to maintain/improve it.
It's one thing to easily obtain my own personal mail server, it's another entirely to understand and be able to maintain/improve it.