Microsoft Outlook for the web: Third-party cookie block causes users to sign in again on Chrome and Edge [MC871011]

Microsoft Outlook for the web: Third-party cookie block causes users to sign in again on Chrome and Edge [MC871011]

Microsoft Outlook for the web is undergoing an authentication platform migration to a public client authentication model using MSAL (Microsoft Authentication Library). The change to client-side authentication will be subject to Google's third-party cookie block that may be active in Chrome and Edge.
[Reminder] Microsoft Team: Review and update Tenant Federation setting to block external access with trial-only tenants [MC870997]

[Reminder] Microsoft Team: Review and update Tenant Federation setting to block external access with trial-only tenants [MC870997]

Teams PowerShell now supports the new Tenant Federation setting -ExternalAccessWithTrialTenants with the values Allowed or Blocked. When set to Blocked, all external access with users from Teams subscriptions that contain only trial licenses will be blocked.