Microsoft 365 - Introducing the new Outlook for Mac

The Outlook for Mac experience, now available for preview, has been updated to enhance performance and elevate productivity. The new Outlook for Mac is powered by the Microsoft Cloud and connects using Microsoft sync technology. It brings updates across Mail, Search, and Calendar experiences that are designed for simplicity, reliability, and customization. Our goal is to exceed the expectations of the most demanding executives and power users with improved performance and new functionality and look forward to learning from our customers who choose to try the new Outlook for Mac preview. The updated experience is carefully crafted and specifically designed with the power of Microsoft Services to provide suggestions and insights that are relevant to you, and simplicity to enable you to customize the experience.
Update: 1/31/22Beginning in mid-February with release 16.58, Microsoft Outlook for Mac, with the addition of Online Archive, Shared Mailboxes, Shared Calendars, and Delegation, will default to the "New Outlook" experience in the current channel for any users who have never tried the new experience or have tried and left the New Outlook.


Before you can use this version of Outlook, your MacOS and client version will need to meet the following requirements:

  • MacOS version 10.14 (Mojave) and later.
  • Outlook version based on update channel:
    • 16.42 (20101102) and later for Current Channel.
    • 16.40 (20073000) and later for Current Channel (Preview).
    • 16.32 (19110306) and later for Beta Channel.

Learn more.

Enable/Disable new Outlook

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 by clicking on the "New Outlook" slider located next to the search function. If the slider does not appear, go to "Outlook" menu and uncheck New Outlook and restart Outlook. 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.

Are there features/settings that currently do not work within new Outlook

Yes. There are several features that are available in the current version of Outlook for Mac for Office 365 that aren't yet available in the new Outlook experience. Learn more.

If you experience issues within new Outlook interface

The new experience is fully supported, and users can reach out with support questions via Help > Contact Support.

Otherwise, disable new Outlook and switch back the legacy experience.

Additional resources

Microsoft Outlook Roadmap.

Microsoft support article for new Outlook for Mac

New Outlook for Mac features

Enhanced performance, designed for simplicity

Keywordsmicrosoft ms office365 o365 m365 microsoft 365 enable disable features settings Block sender Contact lists Delegates Online archive Resend message S/MIME Calendar events opened from .ics requirements minimum version files can't be saved into accounts Mail and events can't be moved or copied between accounts Shared calendars can't be added using Open Other User's Folder Delegated and shared inboxes can't be added using Open Other User's Folder subscribed   Doc ID106875
OwnerO365 S.GroupMicrosoft 365
Created2020-10-28 13:14:56Updated2023-02-02 09:22:58
SitesDoIT Help Desk, DoIT Staff, Microsoft 365
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