Email engagement is crucial when looking at the overall health of your email program. With data privacy protection measures on the rise, the way marketers utilize traditional metrics like open rates and click-through rates is changing. It's becoming increasingly important to leverage non-traditional metrics-like what email clients people open on and even Dark Vs. light mode-to unravel more unique insights about your audience. Understanding these metrics is a powerful way to refine your email strategy and accelerate hitting your business goals. 60% of marketers told us amping up personalization was a top priority for them. What better way to deliver a personalized experience than by understanding your audience's email environment and device preferences... and then optimizing for them?