Effective advertising almost always includes a robust email marketing strategy, regardless of the type of business. Emails are inexpensive to produce, yet they reach a broad audience efficiently.

Opinions expressed by Entrepreneur contributors are their own. It’s not fair, but it’s a fact: business-to-business (B2B) newsletters don’t get as much attention as business-to-consumer (B2C) emails.

With so many people working from home these days, professionals are relying on their inboxes to bring them news, information and entertainment more than ever before. Consequently, email newsletters ...