Bcc, BCC, or bcc, stands for Blind Carbon Copy. It is used when a user wants to send a copy of an email to the recipients without them knowing the other recipients in the “Bcc” address field.

It is a useful way to keep a check on the confidentiality of the information you send across by protecting the privacy of each recipient.

How is Bcc different from To and Cc?

There are three fields of recipients that you find when you compose an email – To, Cc, and Bcc. All the three fields have a different purpose to solve.

Let us assume we ([email protected]) want to send a mail to Person 3 and Person 4 whom we have selected for a job interview. Now, we have to share some information with both of them via mail, but we don’t want Person 3 to know Person 4’s contact details.

If we put their email addresses in the Bcc field, we would be able to mask the email IDs of Person 3 from Person 4 and vice versa.

However, both of them will be able to see the contact details of the sender and the email addresses of people in To and Cc fields.

When there are a few people, it doesn’t matter much. But, imagine if you had to send some information to 100 people. Would your receivers like it if you don’t keep the confidentiality of their data? I guess not.

How does Bcc work?

You provide the instructions to the email client by filling out the three fields of addresses – To, Cc, and Bcc. The client sends a request to the mail server with the message, and then the server delivers it to all the recipients while keeping in mind the instructions submitted by you.

It reads the “To” and “Cc” fields as headers to show, and removes the Bcc line while delivering the message to each email address in the Bcc field.