Shared Mailbox Access

To add access to shared mailbox

Classic Outlook (Windows):

1. File → Account Settings → Account Settings
2. Select the user’s Microsoft 365 account → Change
3. Click More Settings
4. Go to the Advanced tab
5. Under Open these additional mailboxes, click Add
6. Type the shared mailbox or user’s name
7. Click OK → Next → Finish
8. Restart Outlook

New Outlook for Windows:

1. Click your profile picture in the upper-right.
2. Select Add shared mailbox.
3. Enter the mailbox name or email address.
4. Click Add.

Outlook on the Web (OWA):

1. Right-click Folders in the left pane.
2. Choose Add shared folder or mailbox.
3. Search for the mailbox.
4. Click Add.