The New Outlook is still officially in Preview at time of writing, so some features are still missing and may yet come across. But if you want to try it out, it’s a new fresher way of managing your email. You can still switch back to the classic experience if it’s not (yet) for you.
Locating the Shared Mailboxes
Open the New Outlook desktop application (If you aren’t sure which version you are using, look for the New Outlook logo in the Start menu).

Look for your email address in the panel on the left-hand side and click on it to expand the mailbox.

You will now be able to see all the folders in your mailbox.
Look for the ‘Shared with me’ folder and click to expand it.
That’s it! You will now be able to view all the mailboxes that have been shared with you and click on each mailbox to expand and view the folders inside.
For some more info on the New Outlook, check out Microsoft’s blog and FAQ: The New Microsoft Outlook for Windows
Mailbox Management
Do you ever get notifications about your mailbox running out of space? Check our guide on How To Free Up Space In Your Mailbox for tips on how to keep your mailbox tidy


