- Plesk Onyx for Linux
How to enable DMARC Reject Messages for all mail that are not passed DMARC check?
DMARC standard specifies two different rejection reports: 'full rejection' and 'silent discard'.
When a message is sent with 'From: example.com' header and rejected by the DMARC policy, the former replies with '550 5.7.1 rejected by DMARC policy for example.com' error code.
The latter, however, replies with '2xx' reply code, implying that delivery was successful, but then simply discards rejected message.
DMARC implementation in Plesk supports only the 'silent discard' rejection report. Take part in our product improvement by voting for this feature here: https://plesk.uservoice.com/forums/184549-feature-suggestions/suggestions/31372993-complete-dmarc-support.
The top-ranked suggestions are likely to be included in the next versions of Plesk.