New
#1
three key 8.1 app features missing from 10 email app
* Select all . I think I know why this happened (converging the desktop and mobile interfaces, and reflecting the bias against select all in mobile email apps) -- but it still dramatically impairs app functionality. Mystifying that MS would not recognize this as a permitted variance between desktop and mobile, given that it forces people who have to manage large amounts of email (i.e., everyone) back to browser interfaces.
* Ability to switch the replying account / email address of an email to that of a different account from the one to which sent. This is a powerful feature of Outlook and was a welcome addition to 8.1 mail app; no idea why it went away. (Very useful for shifting conversation threads that are non-business to personal account, and vice versa).
* One step switch between accounts