How many of you were not ready to let go of classic Outlook?
If the April 2026 deadline to move to the new Outlook for Windows has been hanging over your head, you can breathe a little easier!
Microsoft has pushed the opt-out phase start date to March 2027, giving organizations an extra year to prepare.
They’ve pushed the transition deadline from April 2026 all the way to March 2027, Most of the classic Outlook features people rely on are already in new Outlook—and more continue to roll out regularly.
Instead of rushing, this is the right time to explore new Outlook intentionally:
- Check feature and web add-in compatibility
- Pilot with early adopters (new users and Copilot users are great starting points)
- Use admin-controlled migration to move users in stages on your timeline
Users who are moved can still switch back to classic Outlook temporarily during the transition. And if you’ve already hidden the new Outlook toggle via policy, nothing changes unless you decide it should.
What’s your biggest concern about moving to the new Outlook?