A series of automated emails sent to people who take a specific action. For any given action, you can choose how many emails to send and the rate at which to send them. These emails can be personalized with data like the contact’s name, and specific references to the action they took. You might send a drip campaign to someone who signs up for your online course, for example. Or you could send a drip campaign to people who add an item to their online cart without buying it.