On 27.06.26 16:43, Dan Mahoney via Postfix-users wrote:
DMARC (the protocol) has the ability to sigil p=quarantine in a message
when there's an authentication failure, which currently by default in
OpenDMARC (the software) just gets flagged as an Authentication-results
header. However...
[...]
The intro paragraph says only that milters can "modify or reject" a
message: i.e. "Postfix passes it to the first configured Milter which may
modify or reject that content or may modify the stored envelope". The
hold queue is neither of these actions.
[...]
Yes, the MILTER_README should perhaps be updated to make this clear.
Now, the Hold queue is invisible to most downstream users. I'd *rather*
just let downstream filters process this, and things like SpamAssassin
don't magically equate dmarc=fail; p=quarantine with "must accept message
but mark as spam, move to Junk", it's simply a score adjustment, which can
be overridden by other things like bayes, user preferences, welcomelists,
etc (vs an override in OpenDMARC.conf), so it's also imperfect. The
domain owner has indicated that we are to do something specific with the
message, we should do it, even if we're interpretive about what
"quarantining" means. But I digress.
At any rate, my postfix question is: Is the milter interface wired up to
the milter sockets in Postfix to allow a move to the quarantine queue by
default? Or must one do something more in postfix beyond simply
configuring the milter socket to turn this on? (If so, it's worth
mentioning it in the OpenDMARC docs).
according to https://marc.info/?l=postfix-devel&m=165409373317244&w=2
the postfix honors the quarantine request by moving the message into the
HOLD queue.
you just need to have tools to manage the HOLD queue, there are some listed
on http://www.postfix.org/addon.html
--
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