This guide will show you how to open a Shared Mailbox in Outlook for Mac.
When you have Full Access permission to a shared mailbox you can add the shared mailbox with your own credentials.
To open the shared mailbox:
- On the Tools menu, click Accounts.
- Click the Plus Sign to add an additional Exchange account.
- In the E-mail address field, enter the email address of the shared mailbox.
- Under Authentication, enter your own credentials.
Checking the setting Sync shared mailbox will allow Outlook to synchronize the shared mailbox without requiring the user to click Send/Receive. Enabling this setting is highly recommended for users who use their own credentials to access a shared mailbox.
Additional information available here https://support.microsoft.com/en-us/office/open-a-shared-folder-or-mailbox-in-outlook-for-mac-6ecc39c5-5577-4a1d-b18c-bbdc92972cb2