Clarity is key here. Your sign up form should explain the benefits of signing up for your email list, information about the types of content you’ll be sending (newsletters, product promotions, etc.), the cadence of your emails (i.e. weekly, monthly). When you define these expectations up front, your subscribers won’t have any questions about what they signed up for.
Now, you can automatically send highly relevant emails encouraging them to buy the product or service they were considering. Customers who received multiple abandoned shopping cart emails are 2.4 times more likely to complete the purchase than those who receive only one followup email, according to Experian. Try sending the first message one day after, a second message 48 hours after, and possibly a third message within three or four days of abandonment.