What is e-mail marketing?

E-mail marketing is a form of direct marketing that uses electronic mail to send commercial or fundraising messages to an audience. In its broadest sense, every e-mail sent to a potential or current customer could be considered e-mail marketing. It involves using e-mail to send advertisements, request business, or solicit sales or donations, and is meant to build loyalty, trust, or brand awareness. It is commonly used for newsletters, promotional offers, and important business updates.