> On 9/20/21 01:39, Kevin A. McGrail via mailop wrote: > > Hello, working on a delivery error that to me looks like there might be > > DNS issues. Very unusual. > > if you do reach a human there, could you do us all a favor and ask them > whether they still believe in the tooth > fairy^H^H^H^H^H^H^H^H^H^H^H^HSMTP callbacks and show them > https://bsdly.blogspot.com/2017/08/twenty-plus-years-on-smtp-callbacks-are.html?
I wondered why mailspamprotection.com sounded familiar. They seem to like sending blowback bounces in response to forged spam that fails authentication checks. How is this still a thing in 2021? Cheers, Al Iverson -- Al Iverson // Wombatmail // Chicago Deliverability: https://spamresource.com DNS Tools: https://xnnd.com _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
