MailScanner with anti virus and SpamAssassin in centos 6

Hi everybody,
i am new in your form .i need help .i have completely configured a mail server with postfix in my machine which OS is Centos 6.now I want to protect from spam in my machine with mailscanner .please help me how could be done in my machine it completely and running smmothly.its very helpful for me.
Thanks
Md. Ziaul Haque

Hi,

I strongly believe that this is what you are looking for:

I am not sure how efficient mailscanner is. Have you tried SpamAssassin?