Collaborate with Copilot in Outlook while drafting email

Microsoft 365 Copilot will be integrated into Outlook’s compose window starting March 2026, enabling real-time collaboration for email drafting. Available initially on Outlook web and new Windows Outlook, it is enabled by default for licensed users, with no changes to admin controls or workflows. No action required. We’re introducing a new drafting experience in Outlook that enables users to collaborate directly with Microsoft 365 Copilot while composing email. This experience helps users move from a blank message to a polished draft more efficiently by allowing them to iterate with Copilot in the compose window, while staying in full control of the final content. When this will happen General availability (Worldwide): Rollout will begin in early March 2026 and is expected to complete by late April 2026. Initial availability includes Outlook on the web and the new Outlook for Windows, with Outlook for iOS, Android, and Mac following shortly. Support for classic Outlook for Windows will arrive later in 2026. How this affects your organization Who is affected Users in your organization who have a Microsoft 365 Copilot license and use Outlook on supported clients. What will happen Users will see a new Copilot side‑by‑side drafting experience when composing email (screenshots 1 and 2): View image in new tab View image in new tab Users can collaborate with Copilot in real time to refine, expand, or rewrite content directly within the compose surface (screenshot 3): View image in new tab The experience is enabled by default for licensed users. Existing policies related to email access, governance, and protection continue to apply; there are no changes to admin controls at this time. There is no change to existing workflows outside the compose experience. What you can do to prepare No action is required. You may choose to: Update internal training materials to help users understand this new drafting experience. Review upcoming Learn and help documentation as it becomes available. Compliance considerations No compliance considerations identified. Review as appropriate for your organization. Message ID: MC1239932

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