Frustratingly, some see DKIM as too complicated and they run their own mail servers and simply won't set it up. I agree that it's annoying to do ... but it's become pretty close to necessary these days.
The users with the worst problems were my local town government who were getting mail from US government agencies. There is a mandate that agencies MUST do DMARC, so some of them said what's the cheapest easiest way to do it, publish an SPF record and DMARC p=reject? OK, done.
Regards, John Levine, jo...@taugh.com, Taughannock Networks, Trumansburg NY Please consider the environment before reading this e-mail. https://jl.ly _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop