Lightspeed Lightspeed Alert Admin Lightspeed Alert Admins Email Settings Here are the instructions on how to disable Alert email notifications: 1.) Sign into https://filter.lightspeedsystems.app, (sign in with Google) click the green circle at the top right, and choose notifications. 2.) Toggle off Alert notifications Create A Email Rule for Lightspeed Alerts Login to Gmail, and then click on the icon inside of the search bar. Beside the From box, enter do_not_reply@lightspeedsystems.com and then click Create Filter Make sure your check boxes match these in order to create your rule and then click create filter.