Bcc = blind carbon copy. You use the Bcc field (Options | Bcc Field) to enter addresses when you don’t want recipients to see who the message was distributed to. The person receiving the message will see only those addresses that you put in the To or Cc box.
Display the BCC field on messages
If you click the To button to select names, you can select the names then click on the Bcc button to add those names to the BCC field. After the first name is added to the BCC field, you can double click on additional names to add them to the BCC field as the last used field stays active until you click another button or compose a new message.
If the BCC field was not yet enabled (by clicking on Options, BCC), adding names to the BCC field using the address book will show the BCC field on the message form.

View the BCC field on Sent messages
To see the Bcc addresses for messages that you sent, open the message from the Sent Items folder. In newer versions of Microsoft Outlook you should see the BCC field automatically when it contains names.
In older versions, open the message and enable the BCC field on the Options dialog.
You can also add the BCC field to the message list to see the names. You may not be able to see all Bcc recipients using this method if there are many names on the BCC.

Printing the BCC addresses
Printing the message with the BCC field visible is more difficult – to print the BCC field in you need to customize the message form to allow printing.
The easiest way to print the BCC’d addresses is to hit Forward then copy the BCC list from the sent message and paste it into the message body in the Forward, then print and close the message. Alternately, you can open the sent message and go into Edit mode, paste the names into the message body and print.
Articles that may interest you:
Last reviewed on Sep 12, 2011


I am using Outlook 2010 and I have a Gmail account for my email address. The bcc: field does NOT appear when I view Sent messages. (However, I could see them before I switched my email address from ATT to Gmail a coup[le of months ago.)
Yes, that is a side effect of your sent folder settings. If you save sent items to the imap sent folder, you won’t see the bcc names. If you use a local sent folder, you’ll see the BCC field.
See http://www.slipstick.com/outlook/2010/messages-arent-saved-in-the-sent-items-folder/
and
http://www.outlook-tips.net/outlook-2010/tip-890-unintended-consequences-gmail-imap-duplicate-sent-bug-fix-bcc/
Note that some people say messages are sent twice when they save messages to the gmail sent folder. I could not repro it – i think gmail just makes a copy of the sent item but doesn’t send it twice.