Information : 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.For Email Marketing, the business need to have a huge amount of Email addresses lists so they can reach to them by sending them email campaigns regularly. This is a very good advantage of email marketing that you can keep on sending emails with some time interval and offer them good, the most of them will eventually accept it.