[opendmarc-users] opendmarc and Mailer Daemon

kzkz at poczta.onet.pl kzkz at poczta.onet.pl
Mon Sep 6 05:18:05 PDT 2021


Hi,
I have installed and configured opendmarc on the receiving SMTP server.
I have noticed behavior such as the following: when the message is from Mailer Daemon - when 'MAIL From: <>' is used during the SMTP dialog, and the From: header line is a valid sender's domain, opendmarc marks such messages as 'dmarc=fail'. Consequently, when the sender's domain DNS _dmarc record contains p=quarantine/reject, the mail will not reach the recipient mailbox.
Does running opendmarc on the receiving server prevent receiving messages from Mailer-Daemon?
What should I do to get my users to receive such messages?
Kazik
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