Peplink Only allow traffic for specific WANs

Hello Guys, Good day. I am currently using the Peplink Balance 20X device with 3 different WAN connections. I would like to ask if it is possible to configure the client network such that when online through WAN1, only ports 80/443 are allowed which configured on the outbound firewall rules. However, in the event of failover to WAN2, only ports 110 and 25 would be functional.

I would greatly appreciate any guidance or advice on how to achieve this setup.