25 Mar
2021
25 Mar
'21
12:41 p.m.
On 3/24/21 5:57 PM, Bryan Fields wrote:
On 3/24/21 8:44 PM, Michael Thomas wrote:
FWIW, nanog doesn't alter messages. All lists have the option to follow suit. It does. There's a setting in mailman that's enabled for the nanog list.
dmarc_moderation_action (privacy): Action to take when anyone posts to the list from a domain with a DMARC Reject/Quarantine Policy.
It's set to Munge From.
So if your domain had a reject policy on DMARC, nanog will munge the from: header to be 'Your Name via NANOG'<nanog@nanog.org>.
Yes, the IETF list does that, for example. But NANOG's just not modifying anything is better, IMO. But the larger point is that people should set p=reject and put the burden on mailing lists to adapt. Mike