If Yunohost installed Mailman3 for you, then it's better to ask them to update it for you.
On Tue, Oct 24, 2023 at 7:51 AM Yvan ♞ <elemac@free.fr> wrote:
Hello, Thanks for this answer, my problem is I'm on yunohost server and the update 3.3.9 is not available now. Any "handmaid" solution should be great. Sincerely
Le 22/10/2023 à 10:45, Stephen J. Turnbull a écrit :
elemac@free.fr writes:
Hello, on 15th October, 120 users with gmail address where suddenly removed from lists in mailman3, something changed in google ?
Google is evil, who knew?
Google decided to publish a DMARC policy of "p=none". This announces to the world that you have to decide for yourself whether to accept mail from Gmail with a broken DKIM signature from gmail.com. Gmail has decided that they will not accept such email from themselves, even though they know more about the sender than anyone else, and even have access to the original sender copy.
Mark has a patch that applies your preferred DMARC mitigation to Gmail authors unconditionally. I think it's in the new version just released 3.3.9, so you can upgrade. The name of the variable is dmarc_addresses, and in Postorius it will be in the same settings group as other DMARC settings, with a similar tag.
If for some reason you strongly prefer not to upgrade immediately but want this feature, it's commit #8532f751b6b8bfee3210c1327d755756f99d99ac (you can shorten that to 8532f). I do not recommend this. It probably is independent of other changes in 3.3.9 from other releases. But if not you could have issues.
I think you also need the patches in Postorius, but I don't think they've been released yet. "Coming soon" as they say. The relevant commit is #770add1ebf27fd335c675607f26bb8f7cf313ddd,
If you search back in the archives, I think Mark posted a link to his original patches.
Steve
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