April 26, 2021
A tool programmed to send automatic messages that are triggered when a new user logs in or takes an action. These automatic messages can be simple or complex, and there are various triggers that can initiate them. For example, a new subscriber will receive a welcome email as soon as they join the list. Or when a subscriber unsubscribes, a message will be sent to them asking why they unsubscribed and asking them to reconsider their decision.