Microsoft has ceased support for EWS connection using basic authentication (username and password). They have sent multiple emails to your email box administrator since April 2022 to notify you about this discontinuation.
To proceed, you need to add a new account in Automatic Email Manager using your email address. The program will detect an O365 account and prompt you for Microsoft authentication. If this prompt doesn't appear, please reach out to us. Simply provide the required information, and the program will function as intended. (Remember to delete the old account once it is operational.)
See also: Use a shared email box >
Important: If you are using Windows server, make sure you installed Microsoft Edge or Chrome instead of default Internet Explorer (IE), because Microsoft doesn't support anymore IE for authentification.