On 1 Sep 2017, at 16:51, Holger Weiß <[email protected]> wrote: > > * 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
Actually it’s not ’Nonsense’, Solomon’s comment does need rewording though. 'If you are a service provider with an open relay you will quickly find yourself on a blacklist which will mean most other services providers will be blocking you.' But I agree, you can’t compare SMTP with XMPP in this regard. David.
