Problems using procmail + bogofilter

[Gerência de Rede]

Hi everybody!!!


I'm using procmail  (postfix) to delivery the messages to a mail box.  
I am wanting to pass bogofilter before the email is delivers. In case that message gonna a spam, that adds to one string ** Spam ** in the subject from the message and delivers in the INBOX. Somebody has /etc/.procmailrc for me to use as example?

Thaks very much!