[OT] Spam filtering (was Re: [Imap-uw] Outlook deadlock)

[Per Foreby]

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 
subscriptions.

/Per