Tech Email etiquette: The do’s and don’ts for using cc and bcc in email July 5, 2023July 6, 2023 Clare Mulroy, USA TODAY Comments Off on Email etiquette: The do’s and don’ts for using cc and bcc in email Cc may be a computer-age term, but it has roots in the 1870s with paper copying techniques. More on how to use cc and bcc in emails.