Shared mailbox (Outlook) - Open and use A shared mailbox makes it easy for a group of people to monitor and send email from a public email alias. If your admin only recently added you to a shared mailbox, it may take a few minutes before the shared mailbox appears. Wait a bit and then close and restart Outlook again. If that didn't work, then manually add the shared mailbox to Outlook: Open Outlook. Choose the File tab in the ribbon. Choose Account Settings, then select Account Settings from the menu. Select the Email tab. Make sure the correct account is highlighted, then choose Change. Choose More Settings > Advanced > Add. Type the shared email address, such as info@contoso.com. Choose OK > OK. Choose Next > Finish > Close. Here follows the screenshots in the above order: