Email Marketing is actually the rock-solid way of promoting a business by sending emails and newsletters. When marketers wish to connect with their target audiences in a conversion driven manner by using some personalized means, they prefer using Email Marketing. It is very powerful in establishing a connection with your prospects and ensuring revenues back to the business in the most cost-effective way possible.
According to Wikipedia-
“Email marketing is the act of sending a commercial message, typically to a group of people, using email. In its broadest sense, every email sent to a potential or current customer could be considered email marketing.”