It's easy to think that email is a relic from the past; from simpler times long before social media and the rise of phone apps. And it's reasonable to think that way. Your phone constantly pings at you, and your laptop OS constantly pings at you, so why bother with email? Because it's still a hugely powerful medium to get and retain attention. In 2017, over 269 billion emails were sent and received per day. Of those, 3,360,250,000 are opened, read, and a link clicked. Email i