The short version
An open-source mail filter that includes inbound DMARC validation.
From the HackerLinks archive
Rspamd
An open-source mail filter that includes inbound DMARC validation.
At a glance:
First seen:2026-08-04
Last seen:2026-08-04
Times seen:1
Website:rspamd.com
Why it caught our attention
It was directly recommended by users as a maintained alternative for receiving-side DMARC checks.
Where it surfaced on Hacker News
2026-08-04
“I use rspamd. This might be a little heavy if you’re solely looking for DMARC validation, but I use the other parts of rspamd as well for inbound email.”
oogali · recommendation · first hand use
Direct HN comment
“Indeed opendmarc seems practically abandonware. rspamd is what I use.”
1over137 · recommendation · first hand use
Direct HN comment
What DMARC Protects You From, and What It Does Not