Return Path looked at nearly one billion data points for this mobile study to see how this growth was affecting email, and the numbers were clear: if you don’t know how many of your subscribers are reading your emails on a mobile device and you don’t have a mobile email strategy, you’re about to miss out on the next gold rush.
Fifty-five percent of consumers stated that they turn on the images in the emails that they receive, which rivals the 57 percent of consumers that state they check their primary personal email account on their mobile devices. -- Far fewer consumers add sender addresses to their address book, which in most email clients will enable image rendering by default. Sixteen percent of consumers stated that they added an email marketer's email address to their address book.
Yahoo! has just confirmed something we have been tracking at Responsys for the past several weeks. They are now applying more weight in their filtering to subscriber engagement metrics. These metrics include whether your subscribers are opening, clicking, or otherwise interacting with the email you send them.
Campaign Monitor shows how Twitter could make its notification emails more mobile-friendly. Take these tips and apply the optimizations to your own HTML email designs (you can find the code at the end of the blog post)