OSBF-lua rules
Last week, I moved my IMAP account from university to a privately hosted server. At the same time, I said goodbye to Spamassassin and switched to OSBF-lua - the results were impressive...
Already installed by Michael, I just had to create some maildrop rules to feed OSBF-lua. After training the bayes database with 42 pieces of spam and 9 of ham, almost any following spam was classified correctly as bulk. The training was easy. Besides some perl/shell scripts, the bayes filter can be trained by sending false pos/negs back to OSBF-lua. You simply have to change the 'Subject:' and 'To:' headers (remember majordomo?). The first thing that came to my mind was: Hey, this could easily be done with a one-click button in Thunderbird. Any extension out there?
Statistics for nonspam.cfc:
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Database version: OSBF-Bayes
Total buckets in database: 94321
Buckets used (%): 9.0
Bucket size (bytes): 12
Header size (bytes): 4092
Number of chains: 7444
Max chain len (buckets): 5
Average chain length (buckets): 1.1
Max bucket displacement: 3
Buckets unreachable: 0
Trainings: 9
Classifications: 88
Learned mistakes: 7
Extra learnings: 0
Ham accuracy (%): 92.47
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Statistics for spam.cfc:
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Database version: OSBF-Bayes
Total buckets in database: 94321
Buckets used (%): 62.6
Bucket size (bytes): 12
Header size (bytes): 4092
Number of chains: 16430
Max chain len (buckets): 60
Average chain length (buckets): 3.6
Max bucket displacement: 29
Buckets unreachable: 0
Trainings: 42
Classifications: 134
Learned mistakes: 2
Extra learnings: 1
Spam accuracy (%): 98.45
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Spam rate (%): 58.11
Global accuracy (%): 95.95
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