1.Change <outbound-socket-binding name="mail-smtp"> <remote-destination host="localhost" port="25"/> </outbound-socket-binding> To **replacing port="25" with port="${app.smtp:25}" i.e an expression <outbound-socket-binding name="mail-smtp"> <remote-destination host="localhost" port="${app.smtp:25}"/> </outbound-socket-binding> 2. View the the "outbound remote" tab in http://localhost:9990/console/App.html#socket-bindings 3. The mail-smtp outbound socket is no longer is visible in the console.