When working would rate this 4 Stars, but...27/10/21: App suddenly won't open - crashes on opening. Can't access any of my emails or calendar. Had to reinstall and set up all my emails again from scratch. Update (24/03/22): Has happened again. Can't access email or calendar. ☹️ Is this due to an update? Please fix it. One of the purposes of an email client such as Outlook is to be able to consolidate multiple email addresses. That makes reinstalling the app a day's work!