Nov 2005

Spam levels and filtering

I tuned my spam filters today. I was forwarding all mail with a SpamAssassin score greater than 10 to spam.at.genebrew.dot.com, and ended up with about 8000 emails from April to November 2000. Looking through the spam box today, it seemed that there were really no false positives, and I can completely discard emails that score above 20. So I added this to my .filter file:

$h_X-Spam-Level contains "XXXXXXXXXXXXXXXXXXXX"+++++++/dev/null
$h_X-Spam-Level contains "XXXXXXXXXX"+++++++spam@genebrew.com
By the way, this depends on having the following line in your SpamAssassin configuration file to convert the numeric SpamAssassin score into a string pattern that can be matched:
add_header all Level _STARS(X)_