I'm testing the latest 1.3.5 which implements senderbase
checking and scoring based on the sender IP country
now, I think the mechanism may be improved and here
is my idea

upon receving a connection ASSP should obtain the
country from which the connection is coming

the current "spam bias" for that country should be added
to the message score

the message will then be processed by the various
filters, at the end the message will have a given "spam
score"

the "spam score" for the country will then be increased
or decreased depending from the message score

to avoid totally filtering out any message coming from
a given country (e.g. you want to receive some emails
from that country since you have real contacts there but
there an high spam volume from that country) the total
"spam bias" for each country may reach at max the 50%
of the score, this means that if a message comes from
an high spamvolume country it will immediately get the
50% of "spam probability", if then the message passes
with flying colors all the other checks then it will be
considered ham, otherwise, failing even ONE test
its score will grow above the "ok" level and the message
will be considered ham

Could it be done ? And.. is it worth ?



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