How to open a shared mailbox or shared mail folder in Outlook for Mac

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The short answer

You can only open a shared mailbox or folder if its owner or your IT admin has given you permission. Once you have it, add the mailbox in Outlook for Mac from your account or the File menu.

Before you start

Check you have been given Full Access to a shared mailbox, or at least Reviewer access to a colleague’s folder. Without permission the option will fail or the folder will not appear.

New Outlook for Mac

  1. In the folder pane, right-click your account name.
  2. Choose Add shared folder or mailbox.
  3. Type the name or email address of the mailbox and select Add.
  4. It appears in your folder list. It can take a few minutes to load.

Classic Outlook for Mac

  1. Select File > Open > Other User’s Folder (or Open Shared Folder).
  2. Search for the person or mailbox, then choose the folder type, such as Inbox.
  3. Select OK.

If it does not appear

  • Wait up to an hour after permission was granted.
  • Restart Outlook.
  • Ask your IT team to confirm the permission and that the mailbox is visible in the address list.

Menu names can differ slightly between Outlook versions.

Need a hand? ABCOM provides Microsoft 365 support to businesses across Sussex and the UK. Contact us and we will reply within one working day.

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