Email marketing remains one of the most effective digital marketing channels, with an average ROI of $42 for every $1 spent. You've heard the advice — send personalized, targeted emails, welcome subscribers to your list, recognize customer milestones and celebrations, and so on. But did you know there are different types of emails to help you do each of those things? Email marketing encompasses 15 distinct email types, each serving specific purposes in the customer journey from awareness to...