Changes in email-service on 24 October 2022
On 24 October 2022 Microsoft turns of Basic Authentication for specific protocols in email service (Exchange Online). After that change, reading email with old email applications stops functioning. However, the Outlook program of the Office 365 package as well as the Outlook programs of mobile devices will continue to work. Change prevents email reading with imap and activesync connection protocols. Programs that use those connection protocols are older email programs. Typically, those programs save userid and password to user's device.
Background to change is also to raise information security.
Solutions to problems:
Use webmail at https://outlook.office365.com/mail
Separate instructions for Thunderbird email-client here.
More information and help: email@example.com