I'm implementing an Edge Transport Server between MBX and Symantec Messaging Gateway. It's going to be the middle man to re-write headers. My mind is having a seizure on how to understand the setup. Documentation and tutorials assume the ETS is going to sit at the true edge. But I have something before it. Will I still use SMG as the Smart Host to process mail? I've not actually seen the Edge Subscription configuration in EAC to understand how this will flow.
It makes sense how it's setup now with our send connectors. MBXes are listed in scoping. Then the smart host as the SMG is listed. Will the ETS be listed as a scope when I setup the Edge Subscription?