You will be presented with the following dialog: To make this possible, click on the “ Sign in with another account” link. The dialog presented above will ask you for credentials for the shared mailbox, however instead you should provide your * own* credentials, as a delegate. This is the most important step of the process. Here’s the biggest difference compared to older versions, as at this point Windows will take over and instead of seeing the familiar ADAL credentials prompt dialog, you will be presented with the following: Once Outlook manages to contact the server, you will be presented with a credentials prompt. Either way, you will be presented with the new “add account dialog”:Įnter the email address of the shared mailbox there, press the Connect button and wait for the autodiscover process to complete. Start by clicking the File menu, then press the Add Account button:Īlternatively, you can also get to the same dialog by pressing File -> Account Settings -> Account Settings -> New. So much for Modern authentication bringing a unified experience across all apps and devices…Īnyway, without further ado, here are the steps to add a Shared mailbox as additional account in newer Office and Windows clients. Generally speaking, the process works, but as static dialogs are used instead of an HTTP render control, the experience will look much different and can cause some confusion. In a nutshell, instead of using it’s own ADAL controls, Office 2016 running on Windows 10 will now “offload” the process of obtaining a token to the built-in Windows controls. The steps however should work for every version that features the new look and feel for the add account dialog.Īpart from the changes in Outlook, some additional changes in the process can be seen due to the deeper integration with Windows 10 Fall Creators Update (version 1709 or later).

This is NOT the first version to have the new “add account” experience. I’m not very good at keeping notes on what changed when, so the Office version number I posted in the title above reflects the currently installed on my machine (version 1708 build 8431.2215). The method outlined in the above article still works, but as software moves forward, there have been some changes in the UI that might confuse people, so I decided to put an updated article. To address this, I posted the How to add a shared mailbox as additional account in Outlook article few years back.

The question of adding your shared mailbox(es) in Outlook remains one of the most common ones, mainly because Microsoft has failed to put a proper guidance on the differences between adding a shared mailbox as additional mailbox vs adding it as additional account.

Add shared mailbox in outlook 2016 mac