said by NickP65:I was under the impression that the rules were suppose to be INPUT rules not output ...
The rule is written from the point of view of the firewall and router's interface. The main thing to remember is whenever there's a device on the LAN side that requests a connection to a certain WAN IP, through NAT, it's an outgoing connection. It's a confusing concept because it doesn't follow the "download = input" and "output = upload" point of view we're so used to.