An article in the Student Guide
A widespread outage affecting Microsoft services is causing difficulties with email and Teams on November 13
https://www.diak.fi/en/student-guide/student-news/a-widespread-outage-affecting-microsoft-services-is-causing-difficulties-with-email-and-teams-on-november-13
...Email and Teams: If an Outlook email or Teams meeting doesn’t open in the desktop app, try accessing the services through a web browser (portal.office.com) or refresh the page. Classes...
