Paweł Leśniak wrote:
I think that situations pointed by you are rather rare.
I see them often enough here that I can't reject based solely on this criteria, but I do add a couple spamassassin points. If it's rare at your site, lucky you.
I don't know of any, so I'm fine with rejecting 0 legit mails at my place by using smtp authentication.
This discussion is specifically about unauthenticated, non-mynetworks mail.
-- Noel Jones