Square Marketing has several pre-built email campaigns you can choose from based on your business goals. You could create a one-time campaign to reward your top spenders with a unique discount code, or create an automated email for new customers, birthdays or lapsed customers. Marketing automation is a powerful way to continually engage your customers and keep them coming back. Square email marketing software gives you automatic analytics on open rates, click-throughs and more. For example, if you want to improve your open rate, you could try a different subject line. There are many different types of email campaigns you can run while learning what works best for your business and customers.