Email is sent as a relayed message from the SonicWall SMA 100 series through a mail host. You must ensure your mail host can accept the relay. Most mail hosts will allow this with password authentication and using special designated port. Some require specific types of transport methods in order to relay. Have this information ready prior to proceeding with the following instructions.
Click Accept. If successful, you will receive a green bar at the top indicating your settings have been saved.