This KB is to distinguish the differences/ advantages of using one way over the other, and then instruct a user how to connect a shared mailbox using either way. See full list on Office 365: Two Ways to Add a Shared Mailbox in Outlook There are two ways to add a shared mailbox in Outlook (Duke-supported versions of Outlook). A warning will display at 19GB and 47.5GB respectively. Automatically file emails and share photos easily. is a free personal email service from Microsoft that doesn't scan your email for the purpose of serving you ads. If you are not sure that you are using hosted exchange please do not follow these steps as incorrectly deleting the Outlook data file may delete your Outlook email permanently.
APPLIES TO: Outlook 2016 for Windows using either Hosted Exchange on Office 365 or similar.
