[SURBL-Discuss] xs.surbl.org preliminary results

Owen, Daniel Dowen at cmaworld.com
Fri Apr 22 23:20:34 CEST 2005


I just realized that these numbers are slightly skewed. I drop any
e-mail that SA scores above a 20.9 . So all of the numbers should
probably be slightly higher. As far as FPs go I don't see FPs being
affected at all. I just wanted to add the note in since it means that
the XS rules may have a higher strike percentage than this indicates. 

I'm considering letting everything come through tagged without dropping
anything for a 24 hour period just to see what the real one day numbers
are. Beyond this testing it would be helpful for me just to see how much
mail I really am blocking. If I decide to do that it'll be sometime mid
next week.

-----Original Message-----
From: discuss-bounces at lists.surbl.org
[mailto:discuss-bounces at lists.surbl.org] On Behalf Of Owen, Daniel
Sent: Friday, April 22, 2005 11:56 AM
To: SURBL Discussion list; Jeff Chan
Subject: RE: [SURBL-Discuss] xs.surbl.org preliminary results

More stats. I'll continue to do these internally but unless something
interesting comes up I probably won't post stats on a daily basis unless
someone wants to see them. 

total e-mails: 9059
total strikes: 1226 (13.5% of total e-mail)
spam strikes: 1225
ham strikes: 1 (see details below)

total messages marked as spam (all rules): 6917 (76.4% of total e-mail)
total messages marked as spam (all rules) also marked by XS: 1187

also in:
NOT in any one of the above: 107 (.087% of total XS strikes)

The false positive:
This was a mailing list posting. The sender was sending through
input-MUNGE.com which has a standard disclaimer that includes
input-MUNGED.com. Looking at news.admin.net-abuse.sightings I see
several reports of advanced-inputMUNGED.com. Could that be it? I also
see 3 that appear to have numerous garbage URLs included but they are
2003 and 2004 so they should not be the issue. 
Anyway. It's the first false positive I have seen using the XS list. 
URIBL_WS_SURBL also hits this one.

This email contains privileged and confidential information 
intended only for the use of the person to whom it is directed 
and intended. Any reproduction, dissemination or other use of 
this email by anyone who is not the intended recipient is strictly 
prohibited. If you have received this email in error, you should 
advise the sender immediately and delete the email from your mail box. 

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