BCC (Blind Carbon Copy) is a feature in Microsoft Outlook that allows users to send emails to multiple recipients without revealing the email addresses of other recipients to each other. This is useful for sending emails to large groups of people, such as newsletters or announcements, or for sending emails to people who do not know each other.
To add BCC in Outlook, simply click on the “BCC” button in the “To” field of a new email message. Then, enter the email addresses of the recipients you want to BCC in the “BCC” field. You can also add multiple BCC recipients by separating the email addresses with commas.