The need for mobile optimized email is undeniable. Study after study has shown that consumers engage with email—in some capacity—on mobile devices. IDC found that 79% of smartphone users reach for their devices within just 15 minutes of waking up. As a consumer and receiver of marketing emails, I personally check my email on my smartphone a few times a day. I also check it on my tablet in the evenings and on my desktop at work or on the weekends.