Hi, Is there a reason why this mailing list still doesn't support DMARC? I see regular DMARC failure reports due to this list. Thanks, Siddh
On Thu, Jun 5, 2025 at 8:51 AM Siddh Raman Pant <sanganaka@siddh.me> wrote:
Is there a reason why this mailing list still doesn't support DMARC?
I think the main problem is the mailing list adds a footer which breaks DKIM signatures. Adding the appropriate ARC headers signing the modifications should fix this, and I can see the mailing list is using Mailman 2, but this is only supported in Mailman 3. (https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/handlers/do...) Might be a non-trivial fix for what a small issue? I trust the mailing list is doing alignment checks before distributing to the list so if SPF passes all is well imo. Raka
On Thu, Jun 5, 2025 at 3:51 AM Siddh Raman Pant <sanganaka@siddh.me> wrote:
Is there a reason why this mailing list still doesn't support DMARC?
I see regular DMARC failure reports due to this list.
Also see RFC 7960 and <https://datatracker.ietf.org/doc/html/rfc7960#section-4.1.3.3> for potential mitigations. Jeff
participants (3)
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Jeffrey Walton -
Raka Gunarto -
Siddh Raman Pant