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Re: [Asrg] Re: 6 - Yahoo Domain Keys

William Leibzon <william@completewhois.com> Thu, 20 May 2004 04:26 UTC

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From: William Leibzon <william@completewhois.com>
To: Philip Miller <millenix@zemos.net>
Cc: asrg@ietf.org
Subject: Re: [Asrg] Re: 6 - Yahoo Domain Keys
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On Wed, 19 May 2004, Philip Miller wrote:

> These types of things could potentially be blacklisted. Has anyone created a 
> functioning BL of domain registrars, rather than domains?

How seriously is this needed? 

Completewhois has most of what is necessary and could do this but it'd 
require additional investment in time to program the proper transformation 
to create daily static dnsbl list (which I estimate at least 20 hours of 
programming time), plus additional necessary work to provide documentation 
and support and hardware to run this all. This is beginning to exchaust my
resources and I'd only be willing proceed and invest in programming of 
this functionality if at least dozen other people tell me for certain that 
they would use it and in the help with at least documentation.

> SPF simply says that they control the domain they're using, which is an 
> improvement over the present state. In this case, if they're using zombies, 
> they need some way to ensure that all of those zombies end up authorized by 
> the SPF records. 
SPF records for INADDR space will allow ISPs to tell if particular computer
should be running mail server or not. SPF for direct domains can override
negative response for for those few who actually do want to run mail server
on their broadband line and do not have an ISP that is cooperative enough
to whitelist that ip.

----
William Leibzom
william@completewhois.com




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