[bitfolk] Postfix + Spamassasin

Hola all, Any clues about using Bitfolk spamassasin servers with my postfix setup? I'm assuming /etc/postfix/main.cf needs some magic... I've found spamassassin unix - n n - - pipe user=spamd argv=/usr/bin/spamc -f -e /usr/sbin/sendmail -oi -f ${sender} ${recipient} to go in master.cf and other various tutorials for spamd running on the local machine. I want to use bitfolk remote servers though... Anyway I won't waffle on for those people on mobile devices ;) Regards, Paul