"New" Outlook: Add Shared Mailbox to Favorites

I'm now on 1.2025.219.400 - which appears to be the latest, but I still don't have an option to add any folders in 'shared with me' accounts to the favourites.

Having a screwed-up system like this will delay our migration to Teams Voice. We love Teams Voice within the departments already using it, but if I can't have my shared mailboxes immediately visible (tagged as favorites, I can't attach the Call Queues. If I can 't attach the Call Queues, I can't implement Teams Voice for additional departments.

Dear Microsoft. Fess up. You messed up. We forgive you. Now fix the darn problem and let us all get back to work.

Please upvote this in the Microsoft 365 Developer Platform: Outlook Monarch: Allow adding shared mailbox folders to Favorites - Microsoft Community Hub

Hi,

for our company also very important feature. Please add ability to make Inbox of shared mailbox as Favorite.

I ask our employees to migrate to new Outlook and this is most missed feature for them.

Thank you.

Oh, wow. If it is truly not something they are actively working to resolve, it really is absolutely baffling.

Microsoft are [painfully] slowly, literally years, to resolve huge productivity deal-breakers that they cause. This is not being able to ungroup taskbar items all over again.

I have said this so many times, but the Windows developers cannot possibly be using Windows as their development machines. There is absolutely no way they can otherwise there is no way on earth they would have let that go on for so long. Being a developer, having to hover over a VS Code icon to then find the right instance of the many projects I am working on at any one time, cost so much time over the past years.

The inability to pin Shared Mailboxes folders causes a similarly painful experience, again, a huge productivity breaker. Similarly to my comments above, the developers programming this new Outlook cannot possibly be using is as an email client and utilising Shared Folders. Ether that, or they barely have any folders or accounts.

I have three different M365 licences, so, Shared Mailboxes are a huge scroll down to the bottom of hundreds of rows, even if I collapsed every folder, so if I want to check these mailboxes it is an absolute nightmare.

If they are not going to add this feature, they should at least allow the same functionality that was possible in the current / old Outlook, where you can actually add a Shared Mailbox" to Outlook as if it was a licenced account. You cannot do his in the new Outlook.

Worst-case scenario, we should, at the very least, be able to add them as IMAP accounts. This should be possible by using:

• Incoming mail server: outlook.office365.com
• Outgoing mail server: smtp.office365.com
• Username: Your email address and the shared mailbox address separated by a backslash (), for example, ******@contoso.com\******@contoso.com
• Password: Your email password

However, when trying to do this with the new Outlook, you cannot specify the IMAP username, which is what we would need to change, it will simply attempt to authenticate using the shared mailboxes address that was entered in the previous step 🤦🏽‍♂️

Other people cannot add IMAP accounts for this same reason: https://answers.microsoft.com/en-us/outlook_com/forum/all/new-outlook-app-how-to-add-an-imap-account-with/ef47acb7-b37a-4813-88c5-96899262813b. In any email client you have ever used, you have ALWAYS been able to define an IMAP username, separate from the email address. It really is baffling that they "forgot" to add this field.