li...@sbt.net.au skrev den 2019-06-01 15:39:
I'm attempting to implement dkim/dmarc, noticed that many spam messages have like "fail (message has been altered)":
wow
Authentication-Results: geko.sbt.net.au (amavisd-new); dkim=pass (1024-bit key) header.d=dossierinfotech.in.net; domainkeys=fail (1024-bit key) reason="fail (message has been altered)" header.from=mai...@dossierinfotech.in.net header.d=dossierinfotech.in.net
run amavisd-milter ? did you report to that maillist ? mailer@ is imho a dsn of content from dsn, why did this fail ?
is that something that can be rejected/blocked in Postfix, and how? or where should that be utilized ?
postfix can only disable milters, so you you like to stop it, do it in opendkim, but do not reject your self from millists, eg whitelist/disable maillist milters first