What exactly are you trying to accomplish? Depending on what you are doing, it will probably be much easier for you to drop all of the ports you don't want to use, and allow the ones you want to instead of using the redirect action.
Something like:
/ip firewall filter
add chain=forward disabled=no action=accept in-interface=LAN protocol=tcp dst-port=21
add chain=forward disabled=no action=accept in-interface=LAN protocol=tcp dst-port=25
add chain=forward disabled=no action=accept in-interface=LAN protocol=tcp dst-port=80
add chain=forward disabled=no action=accept in-interface=LAN protocol=tcp dst-port=110
add chain=forward disabled=no action=accept in-interface=LAN protocol=tcp dst-port=443
add chain=forward disabled=no action=accept in-interface=LAN protocol=tcp dst-port=8080
add chain=forward disabled=no action=drop in-interface=LAN
The first set of rule are there to specifically allow services that you want through the router, the last rule will drop everything else. This also restricts it to just one interface.