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.
I haven't had any comcast.net connections with any valid id (PTR, HELO,
or SPF), in the last 2 years, so they don't have any reputation - since those
connections all get rejected at MAIL FROM. I got 220 comcast.net connection in
the last 24 hours, all looking like this (with random addresses and localpart):
2007Jan29 17:43:41 [1879] connect from c-71-235-138-211.hsd1.ct.comcast.net at
('71.235.138.211', 1485) EXTERNAL DYN
2007Jan29 17:43:41 [1879] hello from c-71-235-138-211.hsd1.ct.comcast.net
2007Jan29 17:43:41 [1879] mail from <yyejiakc(_at_)comcast(_dot_)net> ()
2007Jan29 17:43:41 [1879] REJECT: no PTR, HELO or SPF
(Dynamic PTR doesn't count as valid id.)
Presumably, if someone actually wanted to email me from comcast, the
official SMTP servers would at least have a valid HELO, and I would
get the mail.
--
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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