153024Sguidopass in proto tcp from any to any port = 25 flags S/SA keep frags 253024Sguidoblock in proto tcp from any to any port = 25 flags S/SA keep frags 353024Sguidopass in proto udp from any to any port = 53 keep frags 453024Sguidoblock in proto udp from any to any port = 53 keep frags 553024Sguidopass in proto tcp from any to any port = 25 flags S/SA keep state keep frags 653024Sguidoblock in proto tcp from any to any port = 25 flags S/SA keep state keep frags 7153877Sguidopass in proto udp from any to any port = 53 keep frags(strict) 8153877Sguidopass in proto tcp from any to any port = 25 keep state(strict) 9