rules like:

-Same subject already on n previous mails
-Same subject already on n previous mails on x hours
-Same IP send previous mail from distinct "From"
-Distinct "From" send previous mail with same subject
-Same IP send previous mail to n "unknown users"
-Same "From" send previous mail to n "unknown users"
-Same "Subject" on previous mail to n "unknown users"
-Same URL on x previous mails body from distinct IP
-Same URL on x previous mails body from distinct "From"

already can be scored "similar" subjects, bodys, urls on body...

I know is need a big and fast database of "source ip", "Froms", "Subjects",
"body summary"... of all mails received on x days.

If a lot of servers can share this database spam can avoid before receive
first spam mail. But must be solved how to ensure "privacy" of this data.

exist something like this?  i search it but i not found

Thank you
-- 
View this message in context: 
http://www.nabble.com/%22historical%22-rules-are-possible--tp21370471p21370471.html
Sent from the SpamAssassin - Dev mailing list archive at Nabble.com.

Reply via email to