[REBOL] Cerebrus update
From: gchiu:compkarori at: 21-Feb-2003 15:04
Patches to version 1.2.5 are now up.
Cerebrus will now not start up if another instance is
already started. This may solve the problem for those who
got into a loop downloading new patches.
HTML comments are now stripped out in non multipart email
( they were already being stripped out in multipart base64
encoded html email etc ).
And some statistics on the spam that I have received since
November 2002.
This is a breakdown of the ways Cerebrus has caught spam:
No To Address: 28
No DNS: 126
Spamserver: 126
Forged Hotmail: 150
Content: 275
Bayes: 280
Forged Headers: 381
Spamcop: 420
Banned: 438
Header: 517
Subject: 997
Spamtrap: 1048
NoSubject: 4
Total spam 4790 since 1st November 2002 ( 42.8/day )
False -ves ( 1/week ) 16/4790 is .3%
False +ves ( 1/fn ) 8/4790 is .15%
Detection Rate is 99.7%
the false -ves/+ves are not entirely accurate as I haven't
kept figures, but this is my impression. False positives
for me may be even less.
I relaxed the criteria for what constitutes a forged email
earlier this month, and this may lead to an increase in
false negatives, and also fixed some bugs which may lead
to a decrease in false positives.
I am interested in stopping false positives as they
constitute a type of programming error. If someone is
experiencing a high rate, please let me know and I'll try
and see why.
--
Graham Chiu
http://www.compkarori.com/cerebrus