On Fri, Jun 15, 2018 at 3:18 PM, Richard
<lists-centos@xxxxxxxxxxxxxxxxxxxxx> wrote:
>
>> Date: Friday, June 15, 2018 14:55:21 -0700
>> From: Akemi Yagi <amyagi@xxxxxxxxx>
>> 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@xxxxxxxxx;";
>
> 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
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