On Fri, Jun 15, 2018 at 3:18 PM, Richard lists-centos@listmail.innovate.net wrote:
Date: Friday, June 15, 2018 14:55:21 -0700 From: Akemi Yagi amyagi@gmail.com
I also received the "has been disabled" notification. It looks like users with gmail addresses are affected.
CentOS admins are looking into this issue (I believe).
Akemi
I believe this is a DMARC issue. Yahoo, among other places, has set their dmarc records to p=reject:
dig +short txt _dmarc.yahoo.com "v=DMARC1; p=reject; pct=100; rua=mailto:dmarc_y_rua@yahoo.com;"
So, if your mail hosting provider enforces dmarc,(gmail does) and you get mail from a list that doesn't rewrite the headers, and people from places like yahoo post to the list, you'll likely get some form of warning about being being kicked off the mailing list every now and then. The frequency depends on how often people from p=reject places post, and what the settings are for bounce handling of the mailing list in question.
I believe that the current version of mailman can be configured to do the necessary header rewrites. Some lists I'm on only do the rewrites for headers of posts coming from p=reject sites (much less annoying than having them all rewritten).
I was thinking the same except I do not have enough knowledge in this area. In gmail's header I often see DMARK "Fail"
Akemi