Problem Statement:

How do I remove delegates from a Mailbox


To remove access rights that other users have to a mailbox we can use - Remove delegates from the Mailbox option.

Using PowerShell:

Use the Remove-MailboxPermission cmdlet to remove permissions from a user's mailbox or from an Exchange Server 2016, Exchange Server 2019 or Exchange Online mail user. 

The Remove-MailboxPermission cmdlet allows you to remove permissions from a user's mailbox, for example, removing full access to another user's mailbox.

You need to be assigned permissions before you can run this cmdlet.

To find the permissions required to run any cmdlet or parameter in your organization, see Find the permissions required to run any Exchange cmdlet.




Remove-MailboxPermission -Identity "CoreView Demo" -User "Test User" -AccessRights FullAccess -InheritanceType All

This example removes Test User's full access permission to  CoreView Demo mailbox. 

To learn more about Remove-MailboxPermission cmdlet kindly refer this link.

Using CoreView:

  • Go to CoreView portal
  • Under Actions click on Management Actions and choose Mailbox. From different mailbox action items select 'Remove delegates from Mailbox'. (refer screenshot below).

  • You will be presented with 'Remove delegate from Mailbox' screen.
  • Select the Mailbox from where you want to remove the delegates and click on next.

  • On the next screen select the delegates to be removed from the mailbox.

  • Review and submit the action.

There is another action available in CoreView to Remove User access to Mailbox. For more details kindly refer link - How to remove user access to mailbox

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