In my two businesses, I've sent 25 million emails. Along the way I've learned a lot about how people respond, and have discovered there are two key ingredients that cause people to open, read, and respond to an email: social relevance and problem relevance. In this episode, I break down a simple formula you can use to apply these ingredients to your emails and send your response rates through the roof. When I really need an email to be read and responded to by a sales target, my response rates are 70%+.