Postfix Spam Filter

smtpd_recipient_restrictions =
            reject_invalid_hostname,
            reject_unknown_recipient_domain,
            reject_unauth_pipelining,
            permit_mynetworks,
            permit_sasl_authenticated,
            reject_unauth_destination,
            check_client_access cidr:/etc/postfix/rbl_override,
            permit_dnswl_client iadb.isipp.com=127.0.1.255,
            permit_dnswl_client sa-trusted.bondedsender.org,
            permit_dnswl_client sa-accredit.habeas.com,
            permit_dnswl_client list.dnswl.org=127.0.[0..255].[2..3],
            permit_dnswl_client hostkarma.junkemailfilter.com=127.0.0.[1;5],
            reject_rhsbl_reverse_client dbl.spamhaus.org,
            reject_rhsbl_sender dbl.spamhaus.org,
            reject_rhsbl_client dbl.spamhaus.org,
            reject_rbl_client zen.spamhaus.org,
            reject_rbl_client dnsbl-1.uceprotect.net,
            reject_rbl_client psbl.surriel.com,
            reject_rbl_client hostkarma.junkemailfilter.com=127.0.0.2,
            reject_rbl_client bl.mailspike.net,
            reject_rbl_client b.barracudacentral.org,
            reject_rbl_client bad.psky.me,
            permit_dnswl_client iadb.isipp.com=127.0.2.[1;2],
            permit_dnswl_client iadb.isipp.com=127.3.100.[5..100],
            permit_dnswl_client wl.mailspike.net,
            permit_dnswl_client list.dnswl.org,
            permit_dnswl_client hostkarma.junkemailfilter.com=127.0.0.3,
            check_policy_service inet:127.0.0.1:10060,				# Greylisting Check
            permit