The server could not be found

Hello everyone,
Can anyone provide some direction on how to make outlook repair?
An error occurs when i receive an email message in outlook: The server could not be found

Any help would be appreciated,
Brian

This question is better asked at the Microsoft Outlook forum, Brian.

I have already asked, no luck

This problem occurs because Outlook does not support connections to a server that is running Exchange Server by using the EAS protocol.
try this app to resolve your issue - Outlook Repair Toolbox
here the link: https://www.outlookrepairtoolbox.com/

See more info here: https://youtu.be/AMHQ2OCVFVI

thank you for your assistance. Much appreciated