Re: [IETF] DMARC methods in mailman

Viktor Dukhovni <ietf-dane@dukhovni.org> Tue, 27 December 2016 04:13 UTC

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Subject: Re: [IETF] DMARC methods in mailman
From: Viktor Dukhovni <ietf-dane@dukhovni.org>
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Date: Mon, 26 Dec 2016 23:13:37 -0500
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> On Dec 26, 2016, at 8:34 PM, John Levine <johnl@taugh.com> wrote:
> 
>> By that argument, there's no excuse for the big mailer providers for
>> bouncing List mail because of DMARC.  They could just reference the
>> List-ID field, and display something like this:
>> 
>>   <From> via mailing list <list-id header contents>
> 
> Great idea.  Because there is no possibility whatsoever that if mail
> systems did that, bad guys would put in fake List-IDs to get their
> phishes delivered.

Right and DMARC has put an end to email phishing, and this progress
is in serious jeopardy of being undone if a bad guy can send an email

	From: Bobby Phisher <rf@notbank.example> on behalf of Joe Banker <joe@bank.example>

and is at no risk with:

	From: Joe Banker <joe@bank.notbank.example>

Reminds me of "Yes minister", we've to do *something* about
phishing and DMARC is something...

-- 
-- 
	Viktor.