9.706 - anti-spam engine changed to SASI

Hi Alex,

some observations from our test-installation which holds only "spam-domains":

• 10 days bevor the update: total 441 mails, from that 419 recognised as spam (111 Quarantine, 195 RBL) ->  old engine recognition rate 95%
• 10 days after the update: total 326 mails, from that 191 recognised as spam (0 Quarantine, 191 RBL) -> new engine recognition rate 59%

So from that numbers, the filterrate over all on the new engine is worse. It seems in the new engine only a RBL-filter works, which is not good.

Maybe I'm not that disappointed, because I always used some extra RBLs. These are zen.spamhaus.org, ix.dnsbl.manitu.net, b.barracudacentral.org and bl.spamcop.net.
Give it a try. Btw. something I learned not log ago, these extra RBLs are always rejecting emails. The settings in the GUI only have an effect of the Sophos own tests.

Best regards
Alex

RBLs are nice but will generally not help when the spam comes from abused/hacked accounts or from spam gangs which quickly change their infrastructur/IPs (which most of them do). Additionally on most of the RBLs you quickly run in a volume limitation when you use DNS-resolvers form providers (which is mostly the case).

Dear Sophos you must had content matching (words/sentences, URLs, GIFs...) in your spam engine, why is this obviously not working in the new version?

Well i guess they wont help you:

here are my RBL lists:

bl.spamcop.net

and i am using my very own dnsbl.

but nothing helps here with the new update. as u can see, i got the bank phishing anyway.

Well i guess they wont help you:

here are my RBL lists:

bl.spamcop.net

and i am using my very own dnsbl.

but nothing helps here with the new update. as u can see, i got the bank phishing anyway.