Overblog
Editer l'article Suivre ce blog Administration + Créer mon blog
6 novembre 2011 7 06 /11 /novembre /2011 22:40

Just to say that the Opensource world does manage to provide tools being able to filter spams according to a sender's reputation.

 

Below a few (daily) stats that I have on a messaging server, running:

- Debian fully-patched

- SpamAssassin and Exim4 (with Razor, Pyzor, DCC, *RBL,...)

 TOP SPAM RULES FIRED ---------------------------------------------------------------------- RANK RULE NAME COUNT %OFMAIL %OFSPAM %OFHAM ---------------------------------------------------------------------- 1 BAYES_99 958 51.45 89.20 0.00 2 RCVD_IN_BRBL 921 51.93 85.75 5.84 3 DCC_CHECK 886 53.54 82.50 14.09 4 RAZOR2_CHECK 867 50.00 80.73 8.12 5 RAZOR2_CF_RANGE_E8_51_100 864 49.36 80.45 6.98 6 RAZOR2_CF_RANGE_51_100 864 49.36 80.45 6.98 7 DIGEST_MULTIPLE 852 47.31 79.33 3.68 8 RCVD_IN_XBL 769 41.35 71.60 0.13 9 RDNS_NONE 736 40.87 68.53 3.17 10 RCVD_IN_PBL 689 37.06 64.15 0.13 11 PYZOR_CHECK 625 34.00 58.19 1.02 12 HTML_MESSAGE 512 54.56 47.67 63.96 13 RCVD_IN_SORBS_WEB 479 25.94 44.60 0.51 14 RCVD_IN_BL_SPAMCOP_NET 466 25.24 43.39 0.51 

 

As we can see, lots among the top 14 of the triggered spam rules are "sender's reputation" related...!

 

And yes, the filtering efficiency is good.

BTW, congrats to the guys who worked on the Pyzor issue, for it hadn't properly worked for years...

Partager cet article

Repost0

commentaires