When sending an email to a group of people, you have two other options in addition to adding recipients in the “To” field. When you put more than one email in the “To” field, you are telling the recipients that the message is written specifically to both of them and you want both recipients to see who else the message was sent to.
“CC” stands for Carbon Copy. When you “CC” someone, you are including them in the email conversation but telling them the message wasn’t specifically written to them. Let’s say you are sending an email to a co-worker about rescheduling a workshop and you want to keep your supervisor
in the loop. Then you would send the email “To” the co-worker but use the “CC” field for your supervisor. When the “CC” field is used, all of the receivers of the email can see who was Carbon Copied.
“BCC” stands for Blind Carbon Copy. When you use the “BCC” field, the recipient’s name and email address is hidden from any other recipients. This is useful for when you want to send an email out to a group of people but you either don’t want the other recipients’ to know who it was sent to or you don’t want the other recipients emails disclosed. It is considered a courtesy to use “BCC” when you are sending emails to groups of people who don’t know each other. This is because if you put all the email addresses in the “To” or “CC” field, then all of the recipients can see each other’s email addresses.