Outlook: Copilot Chat available in shared and delegate mailboxes

Originally posted by Microsoft Feb 5, 2026 Uncategorized 0 Comments

Shared mailbox users and delegates with full access permission will now be able to access Copilot Chat, directly from their shared and delegate mailboxes in new Outlook.

Product	Outlook
Release phase	General Availability
Release date	March CY2026
Platform	Web
Cloud Instance	Worldwide (Standard Multi-Tenant)
Created	2026-02-05 00:15:27Z
Roadmap ID	554936
Roadmap Link	https://www.microsoft.com/microsoft-365/roadmap?id=554936