It appears that Slavko via mailop <[email protected]> said: >Ahoj, > >Dňa Tue, 30 Dec 2025 11:00:44 +0100 Hanno Böck via mailop ><[email protected]> napísal: > >> So, technically, all emails from this list should be DMARC-quarantined >> by DMARC-complying receivers. > >AFAIK, DMARC is based on SPF or DKIM, thus missing DKIM is OK if SPF is >OK (message is not forwarded) ;-)
That's the theory but in practice, if you want people to accept your mail you need to add a valid DKIM signature. It doesn't have to be DMARC-aligned but it has to work. SPF is now basically useless because many SPF records include multi-tenant mail farms where one tenant can fake make from another. It's particularly bad at Microsoft but I've seen reports of Google getting confused when mail is forwarded out of Google, back in, and then back out again. R's, John PS: If you were planning to reply, well *my* SPF record isn't like that, please don't. _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
