What is the Difference Between TO, CC and BCC in email?

The main difference between TO, CC, and BCC in an email lies in the visibility of the recipients and how they receive responses to the email. Here's a breakdown of each:

TO: This field is meant for the intended recipient(s) of the email. The recipients in the TO field are visible to all other recipients, and they are expected to take action or respond to the email.
CC (Carbon Copy): This field is used to send copies of the email to additional recipients who are visible to all other recipients, including the recipients in the TO field. CC recipients receive all additional responses to the email when the "Reply All" function is used. CC is often used to keep other people informed about the correspondence or to let the recipient know that other important people are aware of the email.
BCC (Blind Carbon Copy): Like CC, BCC sends copies of the email to additional recipients, but the recipients in the BCC field are not visible to any other recipients. BCC recipients do not receive additional emails unless you choose to forward them. BCC is often used when sending impersonal emails, communicating with large mailing lists, or when you want to protect the privacy of recipients and their email addresses.

In summary, use TO for the main recipients, CC for those who should be informed or aware of the email, and BCC for those who need a copy of the email without being visible to other recipients.