Here at Springboard Marketing, we frequently see our promotional email campaign efforts accounting for 10-15% of our clients’ total sales. However, promotional emails can be tricky; you need to market the right message to the right people at the right time. We can boil down promotional emails to a science, with a number of elements that feed into the complex algorithm that maximizes revenue. Overlooking even one of these critical elements could lead to a loss of potential revenue. Here are the 12 most important elements that drive revenue in a successful email campaign.