There is an error on the mobile site for outlook/live. Whenever an email is deleted, there is an error message, "sorry, it looks like there was an error, please try again. OK." If this link works, see https://bay172.mail.live.com/m/messages.m/%2fm%2ffolders.m%3ffid%3d00000000-0000-0000-0000-000000000002?notif=MdThis error persists on my Kindle despite uninstalling and reinstalling the browser.