Hi there, i've just brought myself a nice mikrotik 751G-2HnD Router. now i've got it working in terms of accessing the internet, but i'm not sure how to do port forwarding, it looks like its got the standard NAT on but i' need the following ports opening for a number of services

HTTPS: 443 pointing to 192.168.1.2
port 80: pointing to 192.168.1.2
RDP: 3389 pointing to 192.168.1.252

i need help ASAP as my client isn't getting any emails through to their exchange and OWA isn't working. Help

/ip firewall nat
add action=dst-nat chain=dstnat dst-address=x.x.x.x dst-port=443 protocol=tcp \
    to-addresses=192.168.1.2 to-ports=443
add action=dst-nat chain=dstnat dst-address=x.x.x.x dst-port=80 protocol=tcp \
    to-addresses=192.168.1.2 to-ports=80
add action=dst-nat chain=dstnat dst-address=x.x.x.x dst-port=3389 protocol=tcp \
    to-addresses=192.168.1.252 to-ports=3389