In Outlook when you send/receive emails in Outlook data, you may receive different error messages. There may be different reasons depending upon the types of error in your Outlook. If you're getting the error code: 0x800ccc92, then the reason behind this could be as follows:

If you've incorrectly filled in your username and password.
If an account is not correctly configured in Outlook.
Due to over-sized PST files.

In all of these situation you may go through some specified manual solution and try to perform them by following the manual steps carefully.