The big ones (MS, Google) mark your mail as spam even with SPF, DMARC, DKIM and the like. This is such a canard. I have almost zero problems delivering to anyb

The big ones (MS, Google) mark your mail as spam even with SPF, DMARC, DKIM and the like. This is such a canard. I have almost zero problems delivering to anybody from my closet server, and the only thing that has happened in the last several years was getting notices that AT&T was blocking me. I did a quick relay check and emailed postmaster@. It only took a day or two to get an email saying I was clean to them again, and that was without the DNS security extensions you mention. Maybe cable modem users are held to a different standard? Dynamic IP addresses? I have DSL with static IPs.