Re: [IETF] DMARC methods in mailman

Viktor Dukhovni <ietf-dane@dukhovni.org> Tue, 27 December 2016 20:10 UTC

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Subject: Re: [IETF] DMARC methods in mailman
From: Viktor Dukhovni <ietf-dane@dukhovni.org>
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Date: Tue, 27 Dec 2016 15:10:33 -0500
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> On Dec 27, 2016, at 2:47 PM, Dave Crocker <dhc@dcrocker.net> wrote:
> 
> 
> End-users are essentially irrelevant to the formalized detection and handling of phishing.

That's good news.  There's no need to worry about what the From: field says at all,
all that matters is automated detection of scams.

Since phishers don't send messages with "Sender" such a change would have no immediate
negative consequences.  Real lists can DKIM sign their outbound messages and get a
decent reputation, while unsigned or forged "Sender" headers can aggressively filtered.

The user can continue to see the bare "From:" header, or "on behalf of" ala Outlook as
deemed most appropriate by the MUA designer and user preference.

-- 
	Viktor.