Aki Tuomi via dovecot skrev den 2026-03-30 12:05:

It's using ARC-Signing, but ofc no one supports that. DMARC/DKIM and mailing lists are super fun.

i have dmarc policy reject, what if dovecot did reject unless i set dmarc policy none

will this not solve downstream testers aswell ?

PS: i belive trunc version of spamassassin have now solved dmarc problems, this include also arc

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