Re: many legit devel@ emails marked as spam by gmail (dmarc reject)

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Chris Murphy wrote:
> Semi-related to the "Attention Gmail users, please turn off HTML"
> thread; anyone *not* using gmail (e.g. all Yahoo email users) are
> having their emails put into spam by google mail.
> 
> 
>>This message has a from address in yahoo.co.uk but has failed yahoo.co.uk's required tests for authentication.  Learn more
> 
> And from the headers:
> 
> smtp.mailfrom=test-bounces@xxxxxxxxxxxxxxxxxxxxxxx;
>        dmarc=fail (p=REJECT sp=REJECT dis=QUARANTINE) header.from=yahoo.co.uk
> 
> 
> And from yahoo's help.
> https://help.yahoo.com/kb/SLN24050.html
> 
> The result of the reject policy set by yahoo (and others), and that
> gmail is one of the few mail hosting companies that honors p=reject,
> is that such emails end up in gmail spam, and no amount of training or
> filtering will fix it. And this is a silent failure. I have many
> emails in spam by Fedora Project users (not just devel@).

On the users list we enabled Mailman's DMARC mitigations
several months ago.  That has allowed posts from users
@yahoo and other domains with strict DMARC settings to reach
list subscribers @gmail and other domains which honor those
DMARC settings.

It may be worthwhile to enable those Mailman mitigations for
all project lists by default (allowing lists who may not
want it to disable the settings).

-- 
Todd
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The secret of life is honesty and fair dealing. If you can fake that,
you've got it made.
    -- Groucho Marx

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