Outlook email accounts have a shared mailbox feature that you can use in Shift!
Open up Shift and add your Outlook or Office 365 account in the sidebar, if you haven't already.
Hint: Look for the circular blue "+" sign to add a new email account.
1. You must have browser tabs enabled in Shift. This is an upcoming feature that will be available with the release of Shift 4.0. Early access is available for Shift Advanced users.
Follow this article to learn how to enable browser tabs in Shift.
2. Click "Open another mailbox".
3. Type the name of the shared mailbox.
An option should appear in the drop-down menu. Select the mailbox you wish to view.
4. The shared mailbox will open in a new web tab for this email account.
Note: This mailbox will not include the option to view personal inboxes.