[clue-admin] SpamAssassin for mailman

[grant johnson]

> Grey list is controlled by my program, delays basically incoming mail
> and most bots give up or are never allowed to connect since they do not
> behave like a mail server while trying to open a connection to my
> server. It also cuts out those nasty stealth monitoring programs that
> some spammers seem to use.
This does work.   I had a problem with my hosting service where for a
couple of days, the load on the server was really high, and the SMTP
was slow about answering.   I went from 200+ SPAM a day to 5 a day.