We analyzed over 360 million Litmus email previews tests to find out where email marketers and designers focused their testing efforts in 2016. This ranking was likely determined by how popular these clients are with our customers’ subscribers, as well as common rendering and bugs that make them important candidates to test and test again. You can use this as a starting point for your 2017 campaigns, or to benchmark your testing efforts against what your peers care about.
To succeed in this constantly evolving industry, it’s necessary to stay on top of the latest updates—your designs, subscribers, and bottom line count on it. While there were dozens of innovations, we’ve focused on the top 10 email developments of 2015. We hope you find this list helpful as you position your emails for success throughout 2016.