DMARC problems with some emails from the list

[Benny Pedersen]

On 2021-03-08 07:43, Ángel L. Mateo wrote:

> I'm having problems with some emails from the list, been classified
> as SPAM in my system because of DMARC failures. I'm not sure but this
> may be a problem with the list configuration.

what state of dkim is c= tag ?, if it contains simple, its not that 
simple since its more strong then relaxed

if thats the case, it could be that 8bitmime is not being disabled 
before dkim signing :(

reference from amavisd dkim howto

is your dmarc test doing ARC test ?

> I attach the log for the failures in the last week.

does not help me helping you