Don’t use the leaked unreleased version of Outlook for Windows 11

by Alexandru Poloboc
Alexandru Poloboc
Alexandru Poloboc
News Editor
With an overpowering desire to always get to the bottom of things and uncover the truth, Alex spent most of his time working as a news reporter, anchor,... read more
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  • Have you also found the leaked version of the unreleased Windows 11 One Outlook app?
  • Microsoft is warning its users not to play around with it and wait for the complete version.
  • The company also included a method for administrators to block this from happening.
outlook w11

It’s not a secret anymore, so we might as well just talk about it. Days ago, the successor to Windows 11’s Outlook app leaked online, and a lot of people caught wind of it.

One Outlook, because that’s what the application is actually called, also goes by the name of Project Monarch.

There was a release scheduled for it last year, but Microsoft had to postpone for an unknown reason, leaving a lot of anticipation to build.

Now that this beta version has leaked, everyone is curious and wants to get their hands on it as soon as possible.

However, Microsoft is not happy at all with this and is trying to discourage users from downloading and playing around with One Outlook.

Microsoft is trying to stop the spread of the beta version

We can’t say for sure what users were expecting from this new version of the app, but what we can say is that it wasn’t at all good news for everyone.

A lot of people are actually disappointed in learning that this brand new version of Outlook for Windows 11 is little more than a PWA.

But, now that it’s out there, there’s actually very little that can be done to stop the spread of the app. And, in an old-fashioned manner, Microsoft started issuing warnings, of lack of other tools.

The Redmond tech company stated that this version of One Outlook is an incomplete version that will be improved before it is officially released.

No, Microsoft didn’t specify there would be any consequences for using this, just warned that it is not safe or practical to do so.

We are aware that some users can access an unsupported early test version of the new Outlook for Windows. This version is missing some of the features and enhancements that will be available later for our customers in the Beta Channel. We encourage our customers to wait for the beta version to be released.

If you’re an administrator and you would like to block your users from connecting their Microsoft 365 accounts associated with your organization to this new app, instructions have been provided.

How can I stop this from happening?

  1. Run the PowerShell app as an administrator

    2. Input: Connect-ExchangeOnline -UserPrincipalName <administrator email>

    3. Input: set-CASMailbox <Email being enabled/disabled> – OneWinNativeOutlookEnabled <$true> if enabling or <$false> if disabling

You can do so by using PowerShell and, when the official beta is available, you will revert these settings using the same instructions provided in the message.

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