Blind carbon copy

Blind Carbon Copy (Bcc) is a way to send a copy of an email to additional people without the knowledge of the main recipient. This is similar to a Carbon Copy (cc), but in an email, those that are in a carbon copy can see all other recipients. However, unlike a Carbon Copy, only the sender and the Bcc recipient will know who gets the Blind Carbon Copies of the email. Other recipients will not see the Bcc recipient's email address in the mail.