In its broadest sense, every email sent to a potential or current customer could be considered email marketing. It usually involves using email to send ads, request business, or solicit sales or donations.

Any email communication is considered as email marketing if it helps build customer loyalty, trust in a product or company, or brand recognition. For instance, when a company sends a commercial message to a group of people using electronic email mostly in the form of advertisements, requests for business or sales, or donation solicitation.

Email marketing is an efficient way to stay connected with your clients while also promoting your business. Doing so, you can easily and quickly reach target markets without the need for large quantities of print space, television or radio time, or high production costs.