Will anyone that left Yahoo email switch back to it? 

Either way, Yahoo CEO Marissa Mayer wanted to ensure everyone got the message on the speedier delivery of email effective today.  So, she went to the company’s blog earlier today, per a report from TechCrunch. The upgrade is the first significant design change for email by the firm since 2011. 

We’ve redesigned the new version of Yahoo! Mail with speed in mind — getting through your emails is faster than ever before. We’ve also made your inbox more intuitive and easier to navigate, allowing you to focus on what matters most: your messages.