9 ms·
Most RBLs are scams. No competent mail admin uses them to block mail ever.
by janc_ 3mo ago
Most RBLs are scams. No competent mail admin uses them to block mail ever.
- rufo 3mo ago…lots of major mail services do? https://www.fastmail.help/hc/en-us/articles/360060591413-Spam-filtering#process https://www.fastmail.help/hc/en-us/articles/360060591413-Spa... https://senders.yahooinc.com/smtp-error-codes/ https://senders.yahooinc.com/smtp-error-codes/ https://www.xfinity.com/support/articles/email-errors https://www.xfinity.com/support/articles/email-errors
- bb88 3mo agoHonestly those are used as weights now in some kind of obscure calculation (or maybe not so obscure calculation but I still don't understand it). What I really learned during that time is that mail servers have well known IP addresses and reputations. And you can say all you want SPF/DKIM fixes that, but the reality is when google sends your email (even with your custom domain) it gets received.