Como podria configurar rutas por defecto

You can use Default Routing to set up split delivery to route unregistered G Suite users to your mail server located at your headquarters. You can also use Default Routing to designate an existing user account as the universal mail destination to receive messages sent to users that do not exist in your domain. 

To set up routing settings, you specify recipient addresses and then specify actions to perform on messages for those recipients. If you set up multiple routing settings, you can sort the rules in order of priority. See Order your routing settings. happy wheels