Your hand trembles, clenched around your mouse, as your curser gets closer to that “Launch” button. The html email that you and your team have slaved over, a pinnacle of design and message, awaits your command. You click. The email blasts out to 10,000 of what you hope are big fans of your business, and you make a mental sacrifice to the Marketing Gods, hoping that even a 10th of your recipients will open the email, much less jump on your call to action.