Sysadmin

9525 readers

31 users here now

A community dedicated to the profession of IT Systems Administration

No generic Lemmy issue posts please! Posts about Lemmy belong in one of these communities:
!lemmy@lemmy.ml
!lemmyworld@lemmy.world
!lemmy_support@lemmy.ml
!support@lemmy.world

founded 2 years ago

MODERATORS

submitted 6 days ago* (last edited 6 days ago) by maniacalmanicmania@aussie.zone to c/sysadmin@lemmy.world

1 comments fedilink hide all child comments

How can I reject mail that does not have a DMARC policy enabled? Using Postfix 3.6.4 and OpenDMARC 1.4.2.

you are viewing a single comment's thread
view the rest of the comments

[–] Oisteink 5 points 6 days ago

Roll your own milter using the python3-milter?

Missing dmarc records is not a dmarc fault, so you just have to reject those without a dmarc.

Maybe reject is too stronk, and a quarantine is better? Will help you debug at least if theres e-mail you are missing