[OT] Spam filtering (was Re: [Imap-uw] Outlook deadlock)
perf at ddg.lth.se
Thu Sep 20 03:27:32 PDT 2007
On Thu, 20 Sep 2007, Joel Reicher wrote:
>> The spamassassin log tells me that about 20% of the email that passes
>> greylisting is rejected as spam. The real number is even higher since
>> outgoing mail reaches the filter (but is whitelisted).
> Yikes. Do you blacklist?
I only use sbl-xbl.spamhaus.org and list.dsbl.org. Had to drop the
dial-up blacklist due to too many complaints about false positives. Some
ISP's seem to use dial-up numbers as fixed IP for business dsl.
However, spamassassin uses two different dul lists (njabl and sorbs) in
it's test, each of them scoring about two points, and that should help
to catch trojan spam while not blocking small companies with dsl
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