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Re: (DMARC) How a whitelist would work, was Why mailing lists

"John R Levine" <johnl@taugh.com> Fri, 18 April 2014 12:30 UTC

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Date: Fri, 18 Apr 2014 08:30:35 -0400
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From: John R Levine <johnl@taugh.com>
To: Yoav Nir <ynir.ietf@gmail.com>
Subject: Re: (DMARC) How a whitelist would work, was Why mailing lists
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References: <CE39F90A45FF0C49A1EA229FC9899B0507D45766@USCLES544.agna.amgreetings.com> <20140414214949.32126.qmail@joyce.lan> <CE39F90A45FF0C49A1EA229FC9899B0507D460CB@USCLES544.agna.amgreetings.com> <alpine.BSF.2.00.1404142150430.32657@joyce.lan> <CAL0qLwbPMm_i0fqNSGQPv=xZaiNASy=icsRNudaNJ_3PNtX3Og@mail.gmail.com> <alpine.BSF.2.00.1404151832460.38826@joyce.lan> <CAL0qLwZUptJVw85T2FjB2HRGoOvcOUHKiQXeadM0QE9BsFVM9w@mail.gmail.com> <CAKHUCzxpwS+nR9wRGOzU_83f7XabMr0pwB5x-MHrqM-28r80kw@mail.gmail.com> <CAKHUCzzw9mufrTCOBQOkRrZU6wOM21X8Y=FUEKf=qnzS9VESjA@mail.gmail.com> <alpine.BSF.2.00.1404161654430.2065@joyce.lan> <CAL0qLwYT_y5ksCP5DpHGXEK084zVg=6HfpJ2B2khkK7jDByZmQ@mail.gmail.com> <alpine.BSF.2.00.1404170008470.2194@joyce.lan> <9760.1397773072@sandelman.ca> <alpine.BSF.2.00.1404172008250.2116@joyce.lan> <29834711-2D38-4D7D-97FA-69CB602AC5C3@gmail.com>
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>> Yeah.  It's clear from the DMARC summary reports I'm getting that the big mail systems already have a pretty good idea of where the mailing lists are,
>
> They know about big lists. Maybe even IETF lists. But do they know about sandelman.ca? Do they know about @irtf.org?

Based on the DMARC reports I get (which are quite useful, independent of 
the policy stuff), I'm fairly sure they know about my tiny lists.

> I really don’t like specs that work well only for large companies.

Of course.  Who's suggesting that, other than perhaps Yahoo?

Regards,
John Levine, johnl@taugh.com, Taughannock Networks, Trumansburg NY
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