BCC
BCC is shorthand for blind carbon copy. If you add a recipient to this box in an email message, a copy of the message is sent to that recipient, and the recipient's name isn’t visible to other recipients of the message. Typically, you would do this to prevent someone's email address from being shared with someone else.
If the BCC box isn't visible when you create a message, you can add it by clicking 'Show BCC' on the the Fields tab, when you are creating an e-mail.
