Companies use email for marketing because it’s an effective way to reach their customer base through a channel they use most often. People spend a lot of time checking email — to the tune of 143 minutes every weekday — making email one of the most direct lines of communication. Can you think of a better channel to nurture and guide customers down your sales funnel? By 2023, email is estimated to generate almost $11 billion in revenue, so if you’re ignoring email, you’re dampening profit.