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Re: not really to do with Re: WG Review: Domain-based Message Authentication, Reporting & Conformance (dmarc)

"John Levine" <johnl@taugh.com> Wed, 16 July 2014 03:40 UTC

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Date: Wed, 16 Jul 2014 03:39:49 -0000
Message-ID: <20140716033949.80178.qmail@joyce.lan>
From: John Levine <johnl@taugh.com>
To: ietf@ietf.org
Subject: Re: not really to do with Re: WG Review: Domain-based Message Authentication, Reporting & Conformance (dmarc)
In-Reply-To: <20140716002015.GV2595@mournblade.imrryr.org>
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>Is there quantitative evidence that preventing spoofing of the
>"From" address reduces the efficacy of phishing?

According to people I've talked to at large mail providers, apparently
so.  DMARC blocks a lot of mail that is clearly phish.

I would have thought that phishers would use any of the bazillion
obvious ways to circumvent DMARC, but they must be as lazy as anyone
else.

R's,
John

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