Additional mailbox settings in the admin center

Admins can now convert user mailboxes into shared mailboxes directly from the main Office 365 admin center. Per default, the resulting shared mailbox will continue to have a license but if desired, admins can manually remove the license after the conversion.

Admins have now more control over what items get copied to a shared mailbox by enabling that “send on behalf of emails” get copied to the mailbox. This allows the admin to ensure that members of the mailbox can see what other members have sent on behalf of it.