Microsoft Teams: Protection against tenant-owned domain impersonation in Teams chat [MC1187679]

Microsoft Teams: Protection against tenant-owned domain impersonation in Teams chat [MC1187679]

Message ID: MC1187679 [Introduction:]Coming soon to Microsoft Teams: A new security feature to enhance external collaboration. If your organization allows external domains to contact users in Teams, we will identify if an external user is impersonating a domain owned by…
(Update)Microsoft 365 and Microsoft Teams: Unified management of Teams apps in Teams, Outlook, and the Microsoft 365 app [MC796790]

(Update)Microsoft 365 and Microsoft Teams: Unified management of Teams apps in Teams, Outlook, and the Microsoft 365 app [MC796790]

Message ID: MC796790 (Updated) Updated November 18, 2025: We have updated the timeline and content below. Thank you for your patience. What it isMicrosoft is rolling out a new feature to streamline how app and agent availability is managed across Teams,…
(Updated) Microsoft 365 Copilot: Agent Mode available in Excel Labs add-in (Frontier preview) [MC1162083]

(Updated) Microsoft 365 Copilot: Agent Mode available in Excel Labs add-in (Frontier preview) [MC1162083]

Message ID: MC1162083 (Updated) Updated November 18, 2025: New capabilities are now available for Frontier program customers. We have updated the content below to provide additional details on how to use Agent Mode in Copilot in Excel. [Introduction:] Agent Mode in…
Agent mode in Excel generally available soon (formerly part of the Frontier program) [MC1184408]

Agent mode in Excel generally available soon (formerly part of the Frontier program) [MC1184408]

Message ID: MC1184408 (Updated) [Introduction]Agent mode in Excel, previously available through the Frontier program, will soon be generally available. This feature enables users to build and edit workbooks side by side with Copilot, streamlining tasks like updating budgets, creating financial…