Can I route traffic from LAN to DMZ?

[robinBones]

I have a setup with a OPT DMZ (10.10.50.x network).
The opt port passes through an untangle server in bridged mode, into our exchange server.
Local clients connect to exchange on a second nic card on exchange (10.10.10.x network).

My clients need access to the untangle server too. Can I route all 10.10.50.x traffic on LAN to the OPT DMZ?