[dmarc-discuss] submission via google / dmarc fail
sca at andreasschulze.de
Fri Apr 29 02:15:06 PDT 2016
A. Schulze via dmarc-discuss:
I like to point to that open topic without any answer I hoped to get
gmail user send with RFC5322.From *@googlemail.com via google using a
the user authenticate as *@gmail.com for submission.
dkim signing domain: header.d=gmail.com
dmarc policy for googlemail.com: quarantine
result: dmarc fail.
- should gmail users no longer use RFC5322.From *@googlemail.com?
- should gmail users using RFC5322.From *@googlemail.com also
authenticate the submission as *@googlemail.com?
- or is it simply an issue that such messages are not handled
correctly at google?
Any clarification is welcome.
> last days I wrote to a address <user at gmail.com>
> The answer was quarantained as the dmarc check failed.
> This ist the reply I receved:
> Authentication-Results: mail.example.org; dmarc=fail
> Authentication-Results: mail.example.org;
> dkim=pass (2048-bit key; unprotected) header.d=gmail.com
> firstname.lastname@example.org header.b=gG3f0joi
> Authentication-Results: mail.example.org; spf=pass
> smtp.mailfrom=<firstname.lastname at gmail.com>
> Received: from [...] (users.submission.client. [public.ip])
> by smtp.googlemail.com with ESMTPSA id
> for <$me>
> (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
> Sun, 16 Aug 2015 23:40:46 -0700 (PDT)
> Sender: User <firstname.lastname at gmail.com>
> From: User <firstname.middlename.lastname at googlemail.com>
> X-Google-Original-From: User <firstname.middlename.lastname at gmail.com>
> Message-ID: <55D181EE.80000 at gmail.com>
> User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0)
> Gecko/20100101 Icedove/31.7.0
> To: ... $me
> So Sender and X-Google-Original-From are "@gmail.com", but From is
> No idea if the user did something wrong or only hit a common pitfall.
> Looks like this user may mix two similar addresses with different
> domainparts while using them as RFC5322.From or SMTP-Auth Username.
> Maybe the google people could clarify?
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