sendmail and procmail , spamassaign

[Vivek Kumar <vivek@gorave.net>]

Hi ,

I am using sendmail for my mails. I was told that if i want to use
spamassassin and redirect the rejected mail to some user account (like
spam user) I need to use procmail.
I installed procmail but I don't understand that can i use this for
entire domain or procmail is only good for one user as when i was trying
to configure it, it talked about .forward file and .procmailrc file in
the user home directory.
What i want it to do is install spamassassin and send all the rejected
mail to spammail@xxxx.xxx account. (xxxx.xxx could be a noewly created
email address).
Any help on this issue will be highly appreciated.

Thanks
-- 
V Kumar