Neil Schwartzman wrote:

On 04/04/09 11:31 AM, "RobertH" <robe...@abbacomm.net> wrote:

greetings...

i am working at re-learning and applying SA fine tuning.

in doing so, i have some across some real life SA scoring anomalies.

it is interesting because one public reputaion service rule offering says to
score "positive", i.e. spammy, spam, or blacklist, and another public
reputation service says the opposite, i.e. negative score aka ham, hammy, or
whitelist.

eyebrow raising to say the least...  ;-)

Yes - That's why I developed the concept of "yellow lists" in my reputation service for hostkarma.junkemailfilter.com. One of the reasons this is eyebrow raising is perspective. Consider 2 spam filtering operations, one is in the USA with mostly USA customers. The other is in France which mostly french customers. The one in the USA would see the hosts *.orange.fr or *.yahoo.fr as primarily spam and might blacklist it. However the French company would see mostly ham from these two sources.

But the reality is in between. These sites are a mixed source of spam/ham and the IP address contains no information as to if it is spam or not. My attempt in yellow listing is to create a list of sources that should not be in an IP reputation list so as to avoid false black listing and false white listing. Thus the name yellow list (as gray was taken).

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