Setting up a shared mailbox in Microsoft Outlook is easy to do and has many benefits for some users. Here's how you can make it happen.

QUICK ANSWER To create a shared mailbox in Outlook, log in to Microsoft 365 with an administrator account, then select Teams & Groups > Shared mailboxes > + Add a shared mailbox. Enter the mailbox ...

This post will help you if you cannot add a second Contact address for another domain to an Office 365 Shared mailbox.