Open Outlook and start a new email
Go to the Options tab
Click Bcc
The Bcc field will appear in the message header
Enter the email addresses in the Bcc field
Compose and send your email
Open Outlook and start a new email
Go to the Options tab
Click Bcc
The Bcc field will appear in the message header
Enter the email addresses in the Bcc field
Compose and send your email