The numbers tell an impressive story of revenue growth from email marketing as a result of working with Underground Ecom. In half a year, we see a nearly 3x increase in email revenue growth. We also find a 2x growth in revenue per email recipient. These wins were generated by using a smart pop-up strategy to drive list growth, as well as utilising rigorous testing and personalization experimentation to improve flagging open and click-through rates. Of course, all of these methods rest upon the solid foundation of an amazing working relationship with our partners at SeoulBox.