If you are not receiving emails on your POP3(Post Office Protocol version 3) account in Outlook 2016, check the internet connection first and restart your Outlook application. Close all other running applications running on your computer. Check if you are using the obsolete OS version. If so, upgrade your OS and check if the problem has been solved. If the problem persists, follow the below-mentioned troubleshooting methods to clear that the POP3 not receiving emails.