*filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :log-smtp - [0:0] -A log-smtp -o lo -j RETURN -A OUTPUT -p tcp -m tcp --dport 25 --tcp-flags FIN,SYN,RST,ACK SYN -j log-smtp -A log-smtp -m owner --uid-owner postfix -j RETURN -A log-smtp -j LOG --log-prefix "SMTP " --log-uid COMMIT