[melipla]

From the firewall command line try using fw monitor to identify where the traffic is failing:

fw monitor -e "accept ((src=<client IP>) or (dst=<client IP>));"

You should see the initial request and the adobe server response. If you don't see a response then you may need to use Wireshark on the adobe server and see if the external client request makes it from the firewall to the server.

HTH