Blind Carbon Copy (Bcc) field is generally used to maintain privacy of recipients and you do want reveal recipients email address to others. If you can’t find the bcc field in your compose email window then you can follow the below mentioned steps to enable bcc field in Outlook 2016 & 2013, Outlook 2010, Outlook 2007 and Outlook Web Apps. Please note that In Outlook , the bcc field is hidden by default.
Enable bcc field in Outlook Web Apps
You can show bcc by using the settings provided as part of the Office 365’s Outlook Web Apps.
Click on the Options link and select See All Options from the displayed menu list.
In the Mail Options page, click on the Settings link available under the Account section.
Navigate to Message Format section available under the Mail tab. To display bcc, mark the checkbox with label as Always show Bcc. Click on the Save link available at the bottom of the page.
Turn on bcc field in Outlook 2016, 2013 and 2010
Step 1: Open the new compose email message window in Outlook 2013.
Step 2: Click the Options menu and navigate to Show Fields section.
Step 3: Click the Bcc option under the Show Fields menu. This should add the bcc field as part of the compose email window.
Enable bcc field in Outlook 2007
To enable bcc field in Outlook 2007, go to options -> click on the Show Bcc button to make it enable. You can also make the From section display by clicking the Show From button which is next to the Show Bcc button. (See image below)