[CentOS] Good book on setting up procmail/spamassassin?

On Wed, 12 Oct 2005, Marko A. Jennings wrote:

> I have found the O'Reilly SpamAssassin book useful when I decided to do
> some tweaking.
>
> Marko

That's good. Specifically, does it go into procmail or fetchmail? That's 
my main interest. Not necessarily in using it in a server environment. But 
in using it on the desktop when I'm remoting in and using fetchmail to 
check my email.

Preston