Spamassassin with sendmail

[Charles Layno]

Can someone provide a link to setting up Spamassassin with sendmail. I tried 
to use a website that was done with RH 8/Spamassassin running with 
FC1/Spamassassin doesn't seem to catch the spam very well. There are times 
when it never catches any and then times when everything is marked as spam.

Obviously something is amiss here.

Thanks for your help in advance.

Charles Layno
Greensboro, NC