I have recently upgraded to 10.3 including Forms and the Forms Portal in the DMZ. The portal no longer works properly. Forms can be submitted and they make it through to the repository, but then the Process suspends because it cannot send out the Email notification. Looking at the logs it appears as though the email task is trying to happen out on the Forms server in the portal not the internal forms server. When we submit the form inside the domain the process works as it should. So for now we have to click retry on all of the suspended processes to get them to complete.
Thank you.