Re: [spf-discuss] SPF, DKIM, and NIH

On Tue, 13 Oct 2009, Ian Eiloart wrote:

> > While gmail.com has so far managed to keep spammers under enough control
> > to avoid a seriously bad reputation on my system, other free email
> Right, but you wouldn't given them a positive reputatation score would you?
> Say, to reduce spamassassin score on the domain name (+DKIM verification)
> alone?
*I* don't assign any reputation scores.  The system tracks the last 1024
emails from each (domain,SPF Result) pair and reputation is a function
of the spam/ham ratio and the length of time the domain has been 
known.  The reputation is objective - only the classification of
messages into spam/ham is subjective.  (E.g., one customer, a travel agent,
considers travel spam "must reading".)

At the moment, gmail.com in fact has a positive score on +31 on a scale
of -100,+100 with confidence of 83 on a scale of 0,100.  So despite
the constant robot abuse, they still send us more ham than spam.  I.e.,
they are at least keeping the robots at bay.

-- 
              Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
    Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.


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