I have followed a few how-to's and have postfix running with amavis-new, clamav, and spamassassin. Everything is working correctly. What i want to do though is not set a spam quarantine folder for all spam, instead have it dumped into a spam folder for each user. I can't seem to get that to work. or get spamassassin to check for '.spamassassin/user_prefs' configs.
I think you can do this with procmail or maildrop. Do you use virtual or system users in your email setup?
Good to hear that. Otherwise this tutorial might have helped you: http://www.howtoforge.com/howto_spamassassin_clamav_procmail