Using Classic Outlook on Windows for personal email, calendar, and contact management
Hi All,
I too was having this exact same issue with my work Exchange account in Outlook 365 Desktop (v2404 Build 17531.20152 Click-to-Run) on my Surface Pro 7+ (running Windows 11 Pro 23H2). I was seeing the new messages on my Note 9 via the Samsung Email app, but not in Outlook Desktop.
Simply exiting and relaunching Outlook Desktop made ALL the emails reappear, and new emails are showing up again as they should. I was hesitant of losing track of my work flow with multiple email windows open, but in the process, I learned that by simply going to File > Click Exit, Outlook Desktop will save ALL your existing message windows. Upon relaunch, it'll prompt if you want to re-open the message windows you previously had open before exiting Outlook, bringing you back in your work flow.
Hope that helps.