According to a new Experian Marketing Services report , transactional emails that include relevant and related products and services have 20% higher transaction rates than those without. Blown away, aren't you? Okay, probably not. It's no big marketing secret that suggestive selling and cross-promotions work, so why doesn't everybody do it? Let's go back to basics. A transactional email is one that a customer expects. Could be an order confirmation,