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MC684892 Control Inbox and Calendar Sharing Options in Outlook on the Web and in the New Outlook for Windows 要約

  • 2023年10月31日


OutlookのWebアプリではこの機能はすでに実装済み(This feature matches the existing capabilities available in Outlook for Windows (Win32). なので、今回はWeb版が対象となります。






Outlook on the Web and the new Outlook for Windows provides users with the ability to share mail and calendar with other users at different permission levels.

Starting in November 2023, tenant admins will be able to turn off the ability for users to share inbox and calendar folders by utilizing the new Office Cloud Policy Service “Turn off folder sharing.”

This message is associated with Microsoft 365 Roadmap ID 182261

When will this happen:

The rollout for this feature will begin in early November 2023 and we expect to complete by late November 2023.

How this affects your organization:

This feature matches the existing capabilities available in Outlook for Windows (Win32).

When this policy is turned on, users will be able to block future sharing of inbox and calendar folders in OWA.

Existing users that have been granted permissions to the inbox and calendar will not be affected.

If admins wish to continue to allow users to delegate their inboxes and calendars, no action is necessary. 

This capability is only active when the policy is turned on. 

What you can do to prepare:

You may consider updating your training and documentation as appropriate.

For more information on applying Cloud policy, please visit: Overview of Cloud Policy

For more information on sharing policies in Exchange Online, please visit: Sharing Policies in Exchange Online