Our email newsletters were due for a redesign. The type was too small, the amount of copy was overbearing, and they were not optimized for mobile delivery. In addition, built by people with limited HTML knowledge. We needed a design that would appear modern, make the content seem less overwhelming, and which would be easy for content creators to update.
I spent quite a bit of time researching email clients and responsive (and fluid) email design. we went through several rounds of prototypes with our business units before we got to a balance of content, white space and mobile device-friendliness. To give our content creators a reference doc that had some interactivity, I added PageGuide.js to a sample newsletter. The feedback I received was overwhelmingly positive.