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[spf-discuss] Domain reputation system design (was: Using SPF op=helo for HELO Authorization)

2007-01-29 16:50:48
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Stuart D. Gathman wrote:
On Mon, 29 Jan 2007, David MacQuigg wrote:
Are you seeing substantial difference between say aol.com and
comcast.net?  Can you quantify that difference?

Reputation accrue to domain + qualifier.  You can't just talk about
aol.com.  aol.com:SPF, for instance, has a high reputation.

ID aol.com:SPF reputation: 75.470863,23.933064

      75 on a scale of -100..100 for reputation
      23 on a scale of 0..100 for confidence

aol.com:neutral, on the other hand, has a very low reputation:

ID aol.com:neutral reputation: -76.159416,99.997415

That is actually the lowest possible score with the current exponential
weighting.  There has never been a non-spam from aol.com:neutral.

This is an interesting insight into your personal reputation system.  Thank 
you!

However, shouldn't a reputation atom be qualified by more than just "SPF" 
or "neutral" ("neutral" _what_?)?  I'd think you'd at least require 
<scope/identity-type>, <method-of-authentication>, <result-of-authenti- 
cation>, e.g. "HELO", "SPF", "Pass"?

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