Default Receive Connectors KB ID 0001314  Problem Out of the box, Exchange 2016 (&2013) has five receive connectors. Three for the frontend transport service and two for the mailbox transport service. Front End Transport Service: Does not alter, inspect, or queue mail. It is the first port of call for ALL mail coming into (and out … Continue reading Exchange 2013 / 2016 / 2019 Default Receive Connector Settings