ITSS will be updating the security certificates on the Microsoft 365 authentication servers from 10pm to 11pm tonight. For already authenticated sessions (e.g. Outlook client or Outlook mobile app), there should be no disruption to Microsoft 365 services (Outlook, OneDrive, SharePoint Online, or Teams). Users who attempt to make new connections to Microsoft 365 services (e.g. Outlook Web App via an Internet browser) may experience a brief inability to authenticate. If this scenario is encountered, please try authenticating after 11pm.
IT Help Desk