The valimail.com domain appears to have recently (it looks like it started 1 June) set a restrictive DMARC policy, and that's caused a boatload of disabled subscriptions. Basically, whenever Seth (or any other valimail.com user, but recently that's been Seth) sends a message to the list now, anyone whose domain honours that policy has their copy of the message bounced back and not delivered. After a few of those, mailman disables their subscriptions.
Seth, please (1) do not post messages to the list from your valimail.com address until this is resolved, and (2) do what you can to get this resolved. Thanks, Barry, chairing _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
