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Today's Topics:
1. Re: DMARC fails for "on behalf of" messages (Alessandro Vesely)
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Message: 1
Date: Tue, 9 Jul 2019 10:36:55 +0200
From: Alessandro Vesely <ves...@tana.it>
To: dmarc-discuss@dmarc.org
Subject: Re: [dmarc-discuss] DMARC fails for "on behalf of" messages
Message-ID: <b6689218-dc55-7a0e-473e-7064cb782...@tana.it>
Content-Type: text/plain; charset=utf-8
> you have to try to find out users who are sending emails in a way you
> described, and ask them to change FROM address to the one matching
> sender domain (senderdomain.aaa)
Or change the bounce address while signing. Having an SPF pass helps in case of DKIM hiccups.
> or you can move to REJECT policy and accept the loss of emails, sent
> by those users.
Or try quarantine with varying pct...
Best
Ale
--
> --?
> Aleksandr
> ?
> 07.07.2019, 14:49, "Jay 1985 via dmarc-discuss" <dmarc-discuss@dmarc.org>:
>
> we have a scenario where some users send emails "on behalf of"
> other email address. Headers appear like...?
> Sender: us...@senderdomain.aaa <mailto:us...@senderdomain.aaa>?
> From: us...@fromdomain.bbb <mailto:us...@fromdomain.bbb>?
> Return-Path: <prvs=12345abcd=us...@senderdomain.aaa
> <mailto:prvs=12345abcd=us...@senderdomain.aaa>>?
> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
> d=senderdomain.aaa;?
> ?
> In gmail both SPF and DKIM authentication passed but this doesn't
> align with the from domain DMARC fails. How to tackle this
> situation. is there any way forward? this is the only issue
> pending to move?forward in reject mode.
> ?
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