> A better way to do this is to setup a RDNS Filter and add a > negative weight for any domain that you add that resolves > correctly, like yahoo.com. For > example: > > Global.cfg: > REVDNS-FILTER filter M:\IMail\Declude\RevDNS-Filter.txt x 0 0 > > REVDNS-FILTER (samples): > REVDNS -10 ENDSWITH .travelocity.com > REVDNS -10 ENDSWITH .untd.com
I understand. But if I understand this right this will cause x REVDNS-lookups for every single mail (X is the number of lines in the filter file) Should it by possible to run a new test like the following example? VALIDDOMAINS validdomains c:\imail\declude\vd.txt -5 +5 Vd.txt ---------------------- @yahoo.com yahoo.com @msn.com hotmail.com ... ----------------------------- Now if a mail comes in having a sender-adress containing @yahoo.com Declude will see that this domain is listed in the filter file (vd.txt) and REVDNS-check if it comes from a host having the right PTR record. (yahoo.com) If so, this message will recieve -5 points. If the message comes from an IP with an "invalid" PTR-record the message collects 5 additional points. This all is done by a single DNS-query. I think at least some big emailers (yahoo, hotmail, ...) can be used in such a test, if we see that very few spam mails comes from their mail servers. Markus --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
