Do one of the following:
Show or hide the Bcc field in all messages
- In a new message, click the arrow next to the Options button
, and then click Bcc.
Use the Bcc field in a single message
- In a message, click To .
- In the Type name or select from list box, type the nameāor click Advanced, and then click Find.
- In the Name list, click the name.
- Under Message Recipients, click Bcc.
- Click OK.