From: "Geo" 

"Richard B."  wrote in message
news:o2n3e2pjqsilo094c1sdvqaq2mlhk2jnni{at}4ax.com...

> Btw, have you found any effective way to block spam email with no
> message body in the Barracuda?  Only by IP or keyword?  Takes a lot of
> time to deal with thataway.

Here's how I got it to filter almost all spams.

Clear out your bayesian database (reset it to zero).

Go thru the logs and file about 200 spams to get bayesian working again.
Wait an hour or two. No say you have it set to block anything with a score
of 4.0 or higher, go thru the logs again and find about 25-50 spams with a
score of 3.0-4.0 just below the threshold. Repeat this till you have about
500 spams filed.

At the same time you are filing spams, file 200 non spams, go thru the logs
looking for emails with a score of 3.0-4.0 and do the same thing you did
with the spams except file them as non spams. It's this threshold realm
where you want to be picking stuff to file as both spam and non-spam. As
you near 500 of each make sure you have at least 50 more non-spams than
spams. Once you reach the 500 mark, only do batches of 25 of each and wait
a day or so between batches until your filtering reaches a real efficient
point. Backup the bayesian database before each batch of 25 so you can
restore in case you make things worse.

At this point it should be blocking almost everything. I'm guessing maybe
2-5% of the spam gets thru mine and almost every one of them is tagged. (I
tag at 2.6 and block at 4.0)

Geo.

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