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M365 Changelog: New Outlook for Mac Preview becomes the default experience in the Preview Channel

Petri Staff


MC255072 – Updated June 30, 2021: Microsoft has updated the rollout timeline below. Thank you for your patience.

With usage growing daily in Microsoft’s preview experience, they are rolling out Outlook for Mac to Preview Channel as the default experience for any user who has never tried the new experience. The default-on Outlook toggle provides access to enhanced performance and user experience across Mail, Calendar, People, and Search.

Microsoft announced the toggle in July, 2020 (MC219576).

Note: If your organization does not use Outlook for Mac you can safely disregard this message.

When this will happen

Microsoft will begin rolling this out in early July (previously early June) and expect to complete rollout late August.

How this will affect your organization

Users will be switched into the new Outlook for Mac experience upon starting the client. Users can turn the toggle off to switch back to the legacy experience as desired. The feature update uses Microsoft sync technology and the updated experience offers an easily customizable experience that uses Microsoft Services to provide relevant suggestions and insights.

What you need to do to prepare

For new Outlook for Mac users with questions, users can reach out to support via Outlook Help Contact Support.

If you prefer to hide the toggle to enable the New Outlook before this change is applied then refer to this article: Set preferences for Outlook for Mac – Deploy Office | Microsoft Docs

Learn more:

  • For the very latest updates on what’s new in new Outlook for Mac, please refer to the support article The new Outlook for Mac.

Additional information

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