How to BCC Recipients to a Message in Yahoo Mail
BCC stands forblind carbon copy.
SelectCC/BCCon the right end of theTofield.
A CC field and a BCC field are added below the To field.

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In the Yahoo Mail mobile app, open theCC/BCCfields by tappingTo.
InYahoo Mail Basic, theBCCfield is visible while composing a message.
Select theBCCfield and enter the recipient’s email address.

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Alternatively, chooseBCCto open a contact search window to add addresses from your Yahoo Mailaddress book.
grab the check box for each contact you want to include and then chooseDone.
Your message must have at least one addressee in theTofield.
If you want no recipient to be visible, drop your Yahoo Mail address.
Compose the email message as usual and selectSend.
Even if a recipient selectsReply Allto reply to the message, the reply is only sent to you.
Why Use BCC?
The BCC function protects the privacy of email recipients.
If sending something more personal, such as an invitation to a party, send individual messages.
Usingtemplatescan make the process go faster.