If you create a new Receive Connector on a Multi-Role box, you have the ability to choose where the connector is setup: HubTransport or FrontendTransport. If a Connector is mistakenly created in HubTransport this can cause many issues. Receive Connectors should always only be created on FrontendTransport. So please make it the default in this case...
In previous versions of Exchange using an MMC, opening the Receive Connector properties would give you a sorted list of the IP address(es) that were allowed to relay through a connector. Exchange 2013 haphazardly lists them in some random order. It's not even order the entries were created. Please sort the list. Another tag-along to that idea is to make that listbox typeable, so it'll bring you to the section of ...more »
Currently all the receive connectors traffic in Exchange 2013 is logged into one single file.
I think it would be much beneficial to specify separate file for each connector.