With Email Tracking Tools, an automatic follow-up email sequence (also called a drip campaign) involves sending automated emails to prospects and clients based on pre-set parameters such as time delay and action. To follow up on a prospect after initial contact is the goal of the Automated Follow-Up Emails sequence. In other words, you prepare a collection of emails in advance and schedule them to send at specific times. By doing so, you may follow up with prospects automatically and at scale without repeatedly clicking "Send" on a keyboard.