Create External SMTP Relay Exchange Server 2013

This KB will show to create External mail relay In Exchange Server 2013 which will allow applications to email external recipient on the Internet.

To start, Open EAC and to Mail Flow -> receive connectors

Select Server and click on the + sign

In the Receive Connector window type the name of the connector and select Front End Transport and select custom In the type section.

In the network binding select the IP addresses you need to connector to accept connection on

In Remote network settings, Add the servers \ application that needs to Relay and click next and Finish

Click on the edit connector and go security

In the security settings use the settings below.