Am 21.11.23 um 12:44 schrieb Ralf Hildebrandt via mailop:
SPF, DKIM, DMARC, douoble-opt-in, valid forward and reverse DNS records are all in place
well, the messages send via *this* list arrive here without a DKIM signature for d=mailop.org Ralf's initial message included a DKIM signature header from d=charite.de charite.de -> mailop.org -> mailman -> some message modification + 5322.From changed to @mailop.org My MTA as well as Gmail receive a message - passing SPF for 5321.MailFrom and 5322.From - DKIM for d=charite.de fail - DKIM for d=mailop.org is not present - DMARC Policy for mailop.org i p=quarantine So, my MTA as well as Gmail receive messages only authenticated by SPF for a domain that announce DMARC p=quarantine. But, messages via [email protected], Ralf's initial question, are different: here I see messages from - Src: 188.68.34.52 with - 5321.MailFrom @postfix.org - 5322.From @postfix.org - an valid DKIM signature d=postfix.org So - SPF pass - DKIM pass - but no DMARC-Policy for postfix.org (see https://dns.google/query?name=_dmarc.postfix.org&rr_type=TXT) At least "DKIM and DMARC is in place" seem to be not really true (if I missed nothing...) Andreas _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
