Delivering Better Mobile Email Messages with Mobile-First, Responsive Design (Will Hacker)

We’ve probably all had the experience of opening an HTML email message on a smartphone only to find that it hasn’t been optimized for mobile. The text is too small to read easily, and it’s difficult to interact with calls to action because of their size and spacing. However, there are ways in which email creators can solve these problems, including using responsive design techniques and taking a mobile-first approach to designing HTML email messages. (uxmatters.com)