[the_third_wave]

Yes.

I host my own mail for this and many other reasons - more insight, more control, more flexibility. I use different addresses for anything commercial or governmental or... anything, really - the only people who get my normal address are family and friends. This makes it easy to see who abuses mail addresses which can subsequently be blocked.

Spam does not make it into my inbox, most of it doesn't ever make it to my server.