On 2026-03-02, Hanno Böck via mailop <[email protected]> wrote: > On Sun, 1 Mar 2026 21:32:40 +0000 (GMT) > Julian Bradfield via mailop <[email protected]> wrote: > >> Tonight I got bounces in my mailing lists with gmail.com refusing to >> accept messages relayed from virginmedia.com senders
> virginmedia.com has a "reject" DMARC policy. > How do you operate a mailing list that is compliant with modern e-mail > standards and keep the sender domain for a mail from a sender with such > a policy? For simple lists of this kind, by not messing with anything. > You'll likely find out that you're in violation of some of them. Either > you're changing the message, which means you break their DKIM > signature. Given you also cannot align SPF, DMARC fails. I don't change the message. DKIM passes. > Or you're not changing the message. But then you cannot support > One-Click unsubscribe (as that needs to be covered by the DKIM > signature), and thus are in violation again. The lists are not "marketing or subscribed". They're organization-internal group lists. > I believe that the only way to run a mailing list compliant with all > modern mail standards is to rewrite the from address (like this mailing > list does now also, as you can see this mail will have > "[email protected]" in its from). As everybody knows, this has its own problems. In particular for my members, who are largely untechy, and will be easily confused by munged headers.... But my point is that this is a new (as of Sunday) problem - I'm curious whether this is another random change in gmail, or whether virginmedia has done something recently to annoy them (e.g. any large spam outburts). (On the positive side, hotmail is no longer rejecting messages with passing DKIM but unaligned SPF, so things occasionally get better.) _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
