table <spamd-white> persist
no rdr on egress proto tcp from <spamd-white> to any port smtp
rdr pass on egress proto tcp from any to any port smtp -> 127.0.0.1 port spamd
block in
pass out keep state
pass in quick on egress inet proto tcp from any to any port smtp
pass in quick on egress inet proto icmp from any to any keep state