Successful email marketers are keenly aware that email frequency lifts conversions. Simple math proves this. Two or more touchpoints will always provide a greater overall conversion than one. But many email marketers are unclear about how many times it’s appropriate to reach a customer within a given campaign period. They’re concerned with whether or not multiple emails will increase conversions or negatively impact customer relationships. Successful email marketers don’t want to risk pestering their customer base to the point where they’re less receptive to future communications.