Before we talk way to fix Outlook 365 not receiving emails. Let’s quickly consider what could have caused this problem to start with.
1. There could be an issue with the network connection of your PC
2. A PC component (like a firewall) may be blocking the emails from coming
3. The mail could be started in the spam folder instead of the mail inbox
4. May be your email not be completely synced with outlook
5. You must have entered the wrong account details or configuration details
6. Outlook’s server may be down or the email client can