Outlook on android - receiving notifications, but emails don't show in inbox.

Why is every response from Microsoft to remove your account and reactivate it??? Here's the reality--Outlook, on both the PC and Android, sucks balls. The engineers don't evaluate new (getting old) technologies and they have lost massive ground to Google. I would never use Outlook if i had a choice. I am strongly pushing for us to move to Google.

It extremely frustrating they aren't able to fix such basic functionality issue for years. Unfortunately, there is no way to report it.

• Answers forum is place for a nonsense robotic copy/paste answers made by a completely clueless people
• Nobody reads the Google Play comments as the issue is mentioned there hundred times
• Do not ever try to report it via the application, it is even worse than the Answers forum (full dumb communication)

There is no Feedback Hub (as for Windows 10) application to report Microsoft app issues on Android.

Moreover it also affects the red notification badges. They appear afteryou open the Outlook app, but never before.

Try turning off battery saver. Let me know if the issue goes away! I can verify that it worked on android but i dont have an iphone anymore to test it.

Still happening in 2019. I noticed an earlier post mention android battery saver may be the cause. Realized i have battery saver turned on so i cycled it off and immediately the new messages came through! Doing more research to see if there is an option in battery saver that is preventing new emails from coming through. Will report back...

I have now fixed, broken, and fixed it again on my Galaxy S9 phone, which makes me think I may be on to a workable solution.  

The issue seems to arise with power savings for me.  Under Settings>Battery>Power Mode if I set the "Optimize" or save mode, the problem recurs.  I have to go into App settings for both Outlook and Authenticator, select "Battery" options, and set to "Not optimized" for the settings under "Optimize battery usage".  I also enabled "Allow background Data Usage" AND "Allow app while Data save on".  BTW, the battery usage hit from allowing these settings seems to be negligible.  

After all these settings, "Force stop" both apps and reboot the phone.  After that it seems to work reliably. 

This worked for me. I set the battery settings to maximum performance and removed all apps from 'prevented background running' and disabled automated optimization. (Outlook was in neither of these groups but still affected).

This will drain my battery even more, but at least I will get mails again. So this seems to be an Android OS issue caused by heavy battery saving. This made my Spotify stutter some time ago too.