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How do I access a delegated mailbox on outlook web?

Anonymous
2023-11-09T21:16:27+00:00

My coworker delegated their mailbox access to me but I cannot access it still. When I click on "open another mailbox" it gives me an error message. What can I do?

This is my error message:

Outlook | Windows | New Outlook for Windows | For home

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  1. Anonymous
    2023-11-10T02:47:08+00:00

    Hello Julia20241231234, Good day!Thank you for posting to Microsoft Community. We are happy to help you.

    To access a delegated mailbox on Outlook Web, you can follow these steps:

    1. Sign into Outlook Web using your own account.
    2. Click on your profile picture or initials in the top right corner of the screen.
    3. Select "Open another mailbox" from the drop-down menu.
    4. Type in the email address of the delegated mailbox and click "Open".

    If you are receiving an error message when trying to open the delegated mailbox, it could be due to a few reasons. Here are some troubleshooting steps you can try:

    1. Make sure that your coworker has properly delegated access to their mailbox to you.

    They can do this by following the steps outlined in this Microsoft support article: https://support.microsoft.com/en-us/office/open-and-use-a-shared-mailbox-in-outlook-web-app-98b5a90d-4e38-415d-a030-f09a4cd28207

    1. Clear your browser cache and cookies and ask the owner to remove the permission and added again then try accessing the delegated mailbox again.
    2. Try accessing the delegated mailbox using a different browser or device to see if the issue persists.
    3. If the issue still persist run this command :

    Check the issue and if the issue still persists run the command below: if you are not admin ask for help to your IT department.

    Connect your PowerShell to exchange online. For more information, see Connect to Exchange Online PowerShell.

    Get-MailboxFolderPermission -Identity ******@contoso.com:\Calendar -User ******@contoso.com

    This example returns the permissions for the Calendar folder in John's mailbox, but only for the user Ayla.

    Get-MailboxPermission -Identity ******@contoso.com -User "Ayla"

    This example returns permissions that the user Ayla has on John's mailbox.

    If you could provide me the results of the command above, I can provide more targeted troubleshooting steps.

    Appreciate your patience and understanding and thank you for your time and cooperation.  Sincerely,Eben Ezer Tres | Microsoft Community Moderator

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