* Solomon Peachy <[email protected]> [2017-09-01 11:30]: > To this day, if you operate an unsecured email relay you will find that > nobody will accept email from you.
Nonsense. There are indeed some email service providers who rely solely on relay server blacklists for spam classification, but they will usually yield an insane false-positive rate. And either way your comparison doesn't hold. If you're operating an open SMTP relay, you're doing something you can't do with XMPP. We're talking about blocking service providers who have *local* spammers. Holger
