On 09.02.2022 16:33, Aki Tuomi wrote:

 I'm participating in ~20 mailing lists and only this one gives a storm of 
DMARC reports on each my posting.

 Problem is, I need to unpack each of them to be sure, that these are false 
positives and I'm afraid, that it could lower reputation of my mail server IP 
address with major providers (like Google Mail).

We did that replacement for a while, but people complained. We have ARC signing 
there, unfortunately it only works if you trust it.

Aki

On 04/02/2022 23:10 Sebastian Nielsen <sebast...@sebbe.eu> wrote:

I get it too. These appear because they don't replace either MAIL FROM: or Mime From: with the list address. This causes validations to fail since the mailing list is trying to spoof mail in your name, and of course, anti-spoofing security is going to react. DKIM can be troublesome since mailing lists sometimes change or reencode content so DKIM signature fails.

-----Ursprungligt meddelande-----
Från: dovecot-boun...@dovecot.org <dovecot-boun...@dovecot.org> För Lev 
Serebryakov
Skickat: den 4 februari 2022 21:58
Till: dovecot@dovecot.org
Ämne: dovecot mailing list (this mailing list), DKIM, SPF and DMARC


   My domain (serebrtyajov.spb.ru) has all these "new" e-mail technologies 
configured. It works fine till I write to this mailing list.

   After that I've got several DMARC reports about "spam" from my domain. All 
these reports are about my mailing list post.

   I don't have such problems with other mailing lists (FreeBSD ones, OpenJDK 
ones, and others).

   Looks like mailing list software for this mailing list is misconfigured.

   I'm sure, I'll get new after this message.

--
// Black Lion AKA Lev Serebryakov


--
// Black Lion AKA Lev Serebryakov

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