Email, Messaging, & Video Calls Email How to Send an Email to Undisclosed Recipients in Yahoo Mail Add an "undisclosed recipients" entry to your Yahoo Mail address book By Heinz Tschabitscher Writer A former freelance contributor who has reviewed hundreds of email programs and services since 1997. our editorial process Heinz Tschabitscher Updated April 03, 2020 Email Yahoo! Mail Gmail Tweet Share Email If you frequently use Yahoo Mail to send the same message to several people at the same time, you don't want all recipients to see everyone else's email addresses. To protect people's privacy, you can set up an "undisclosed recipients" entry in your address book and then BCC all other recipients. Learn how to use this workaround to send an email to undisclosed recipients in Yahoo Mail. Instructions in this article apply to the standard web version of Yahoo Mail. Steps are the same regardless of which browser you use. How to Create an Undisclosed Recipients Contact in Yahoo Mail First, create an address book entry for "undisclosed recipients" in Yahoo Mail: Select the Contacts icon in the top-right section of Yahoo Mail (to the right of Sort) to open your address book. Select New Contact in the left panel. Enter Undisclosed in the First Name field. Enter Recipients in the Last Name field. Type your Yahoo Mail address in the Email field, and then select Save. How to Send an Email to Undisclosed Recipients To send an email message to undisclosed recipients in Yahoo Mail: Compose a new message and select To at the top to bring up your address book. Scroll down to Undisclosed Recipients and select the checkbox beside it. Alternatively, type undisclosed into the search bar that appears to quickly find the entry. Select Done in the pop-up window to return to the message. Select CC/BCC to the right of the To field to open the CC and BCC fields in the email header. Enter all desired recipients in the BCC field. You can use an address book group to send messages to multiple people more efficiently. Compose your message and select Send. You will receive a copy of the message, and your address will show up in the To field. The recipients will be able to see that the email is from you, but they will not be able to see the names of other recipients.