When Outlook not receiving emails, you can follow a series of troubleshooting techniques.
Here are some effective tips to use.
1) Go to your spam or junk folder. Check if you have messages there.
2) Use the search bar to check for specific emails.
3) See that you aren't blocking any email IDs.
4) Add particular email addresses to the safe senders list in your junk email settings.
5) Remove your email account and re-add it.
6) Check if there's any update pending for your device.