Github issue for this bug: #6058
When mailcow send DMARC Aggregate Reports, some of them are not scored in rspamd and not signed. In rspamd web interface> History, column “Pass-through module” shows “Unknown lua”. This happens not every day, but a few times on a week. This behavior start after the last update to 2024-08a.
When the receiving mta analise the message it responds with “554 5.7.1 rejected by SPF policy for mail.moohooooooo.com and DMARC policy for moohooooooo.com with invalid ARC result. postmaster@receivingserver.com: Recipient address rejected: Message rejected due to: SPF fail - not authorized.”
postmaster@synology.com: host mail.synology.com[211.23.38.101] said: 554
5.7.1 rejected by SPF policy for mail.moohooooooo.com and DMARC policy for
moohooooooo.com with invalid ARC result. postmaster@synology.com: Recipient
address rejected: Message rejected due to: SPF fail - not authorized.
This behavior starts after mailcow is updated to 2024-08a version!