Postfix config

Hello every one. I found on a link her that I could config postfix to fight spam: - http://www.dnsbl.nl.sorbs.net/mailsystems/postfix.shtml 1.. maps_rbl_domains = dnsbl.sorbs.net 2.. smtpd_client_restrictions = reject_maps_rbl That works ok on suse ver 8.2, but not on suse ver 9.1, so if someone could tell me how to use this I will be happy. Best from Tage