SD WAN problem

Hello @FortiAymen,

If i understant you correctly you need to use a policy route.

Go to System > Feature Visibility and Active the Advance Routing feature.

Then you need to create a policy route, goto Network > Policy Route and then create a policy route to match your requirements.

You can also do it by the CLI with the following commands:

config router policy

    edit 0

        set input-device "internal1" #match this with your exchange server interface gateway

        set srcaddr "exchangeServer" #match this with your Exchange object in Fortigate

        set dstaddr all

        set output-device "WiMax" #The interfce rou want to route this traffic trought

        set gateway 0.0.0.0 #if you have more than 1 ip on this interface i strongly recommend you to use the ip you set as your reverse dns.

    end

http://help.fortinet.com/...tic/Policy_Routing.htm

I hope this can help you.