Product recommendation emails are customized emails that suggest particular products or services to customers based on their purchase history, preferences, and behavior. These emails may be sent after a customer has made a purchase or depending on their browsing activity. For e-commerce companies, utilizing product recommendation emails is crucial to enhance customer engagement, boost revenue growth, and increase customer satisfaction. By offering pertinent and individualized product recommendations, businesses can enhance cross-selling, improve customer retention, and increase the value of customer lifetime.