3 block return-rst proto tcp all
4 pass all flags S/SA keep state
11 pass in all flags S/SA keep state
12 pass out all flags S/SA keep state
14 pass on lo0 all flags S/SA keep state
16 pass proto tcp all flags S/SA keep state
17 pass proto udp all keep state
18 pass in proto udp all keep state
19 pass out proto udp all keep state
20 pass out on lo0 proto tcp from any to any port = smtp flags S/SA keep state