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Re: [ietf-dkim] A more fundamental SSP axiom

Michael Thomas <mike@mtcc.com> Fri, 04 August 2006 17:13 UTC

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Date: Fri, 04 Aug 2006 10:11:51 -0700
From: Michael Thomas <mike@mtcc.com>
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To: Damon <deepvoice@gmail.com>
Subject: Re: [ietf-dkim] A more fundamental SSP axiom
References: <20060802002353.U59653@simone.iecc.com> <20060802223619.E86316@simone.iecc.com> <44D24A20.6050109@mtcc.com> <20060803153457.X33570@simone.iecc.com> <44D36203.2060803@mtcc.com> <20060804112731.I21459@simone.iecc.com> <44D36B4A.2050903@mtcc.com> <20060804114527.Y27352@simone.iecc.com> <44D37376.4020408@mtcc.com> <1F0984B3-DF97-43EB-B982-4272EC121D36@blighty.com> <62146370608040953i491e3926h1e44a90cd8456e2a@mail.gmail.com>
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Damon wrote:

> On 8/4/06, Steve Atkins <steve@blighty.com> wrote:
>
>>
>> On Aug 4, 2006, at 9:19 AM, Michael Thomas wrote:
>>
>> > John L wrote:
>> >
>> >>   I REALLY do not want an SSP that says "I sign everything, and
>> >> here is my estimate on a 0 to 10 scale of how much you should care."
>> >
>> > I assume that you'd complain if it boiled down to a single bit?
>> >
>> > 0: "mail from this domain may transit manglers, adjust accordingly"
>>
>> 0: "I sign some mail"
>
>
> A 0 _still_ means: I have a published a record just so you have
> to do more CPU/DNS work... because you are going to have to accept it
> anyway.

Also: this formulation is completely bogus on its face: if you want to see
if a domain publishes a "I sign everything" policy, you have already done
that CPU/DNS work even if the answer comes back NXDOMAIN or
"we don't".

       Mike
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