At 01:53 AM 6/6/2005, Roman Volf wrote:
I recieved a spam (http://www.keystreams.com/~volfman/spamd-msg.txt - I stripped the X-Spam headers from the message) that only scored a 4.4,
even though the URIDNSBL showed a hit.
Here is the debug from spamd - http://www.keystreams.com/~volfman/spamd-debug.txt

Is upping the score that a URIDNSBL hit gives a good idea? I mark spam at 5.0. Is this possible?

Any suggestions?


To be specific, that's URIBL_SBL.

Let's look at the mass-check results for this test:

 20.829  42.0571   0.7080    0.983   0.42    1.00  URIBL_SBL

It's got a S/O of 98.3%, which means that 1.7% of the email that rule hits is nonspam. You could probably raise the score a little bit safely. However, because the FP rate is low but not insignificant but I would be careful and not go over 2.0 with it.

As someone else suggested, adding the uribl.com tests would also be helpful, but it's hard to say if uribl.com had that link listed at the time you got the message. SURBL lists the domain in AB, OB, SC and WS now, but none of them had it before. However, the more checks you use, the more chances you'll be checking the list that got it reported first.


p.s. the SA list moved off incubator a long time ago (Although the address does still work, and probably will indefinitely, the current "real" address is users@spamassassin.apache.org)



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