Show, hide, and view the Bcc field in Outlook for Mac

If you add a recipient's name to the Bcc (blind carbon copy) box in an email message, a copy of the message is sent to that recipient, but that name is not visible to other recipients of the message.

Turn on Bcc

1. Create a new email message.
2. At the end of the To line, select Bcc.
3. In the Bcc box, add recipients, compose the message, and when you're ready, select Send.

View Bcc recipients

If you're the recipient of a message, you can't see whether the sender added Bcc recipients. Only the sender of a message can see the names of Bcc recipients by opening a message in the Sent Items folder where all sent messages are stored by default:

1. In the Sent Items folder, open the message that you sent.

2. In the Reading Pane, view the header section of the message.

   

   Tip

   • If there are more recipients, you'll see the number of recipients and more. In the screenshot, for example, 11 more shows there are 11 more recipients listed in the Bcc box.
   • Select more to expand (open) the message header section.

Turn on Bcc by default

1. In Outlook, select the Outlook menu.
2. Select Settings, then Composing.
3. In the Composing window, enable the Show BCC field by default option.