When you have full-access permission to a shared mailbox that appears in the address book, then the shared mailbox is automatically available in your Outlook 2013 Folder pane. The administrator for your organisation has to create the shared mailbox and add you to the group of users before you can use it. Depending on the permissions that you have to the shared mailbox, you may also be able to access the shared contacts and shared calendar that are associated with the shared mailbox.
Shared mailboxes make it easy for a specific group of people to monitor and send email from a public email alias, like or When a person in the group replies to a message sent to the shared mailbox, the email appears to be from the shared mailbox, not from the individual user.
Opening and using shared mailbox, calendar, or contacts, in Outlook
