Re: [dmarc-ietf] Email security beyond DMARC?

"John R Levine" <johnl@taugh.com> Thu, 21 March 2019 17:09 UTC

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Date: 21 Mar 2019 13:09:18 -0400
Message-ID: <alpine.OSX.2.21.1903211308550.83693@ary.qy>
From: "John R Levine" <johnl@taugh.com>
To: "Ken Simpson" <ksimpson+ietfdmarc@mailchannels.com>
Cc: "IETF DMARC WG" <dmarc@ietf.org>
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Subject: Re: [dmarc-ietf] Email security beyond DMARC?
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> IMHO, by cutting out direct domain spoofing, DMARC makes it easier for
> receivers to craft algorithms that spot impersonation attacks.

I realize that's the theory, but do we know how well that works in 
practice?

Regards,
John Levine, johnl@taugh.com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly