Objective: This article will provide the instruction to show you how to Send As the shared mailbox
Pre-requisite: You can only send as the shared mailbox if you are given the access to do so. If you don't have the permission to send as the shared mailbox, this will not work.
Please perform the following if you would like to send email as the shared mailbox instead of you.
1. In outlook, click New Email.
2. Make sure the composed new email is popped out in its own window.
3. Select the mailbox from the drop down list under 'from' field.