Promotional Emails are mainly to inform the customers about the ongoing offers and discounts on different products and services. Their goal is to speed up the buying process and attract masses to visit the sites and grab the amazing deals. Promotional Emails are an active part of the Email Marketing Campaign, but have the highest chance of being reported or being a reason for customers to unsubscribe. Therefore, it is suggested to keep the subject lines and email content of promotional emails catchy but not cheesy or frustrating.