Windows 7 with Outlook 2016.
This is a VERY remote user that POPs email.
Out of nowhere, Outlook stopped receiving email.
Outlook will send just fine. The strange part is that Outlook logs into the POP server just fine.
I know this because it passes the send/receive test on initial setup. And, I can log into the account online, move all of the new messages out of the inbox, and Outlook completes the send/receive. It only gets stuck when it is trying to download a message.
I have changed ports, tried SSL, created a new email address, created a new data file, created a new profile, turned anti virus off.