Key content and design tips for creating successful email marketing campaigns. Successful email marketing can be a complex task. Considering how important this marketing channel is, it’s worth taking the time on the front end to get it just right. Establish the company’s tone and voice (in the content and the subject line); pay attention to aesthetics (color, font, and graphics). Take note of the best time of day to send it out to ensure your emails don’t get buried. Read on for useful graphics and full article.