Create a shared mailbox in Microsoft Exchange 2010

Create a shared mailbox in Microsoft Exchange 2010

To create a shared mailbox in Microsoft Exchange 2010 you’ll need to use Exchange Management shell.

New-mailbox "mailboxname" –shared –userprincipalname "email@domain.com"
Other settings are available for New-Mailbox

http://technet.microsoft.com/en-us/library/aa997663.aspx.