How to Email Undisclosed Recipients in Outlook.com

Send messages from Outlook.com without showing email addresses

How to Email Undisclosed Recipients in Outlook.com

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If you want to send a group email without exposing everyone's address, use the Bcc field in combination with a contact called Undisclosed recipients in the To field to hide recipients. Their email addresses will be kept safe and private, and you don't have to worry about a string of reply-alls.

Instructions in this article apply to Outlook.com and Outlook Online.

Send an Email to Undisclosed Recipients in Outlook.com

In Outlook.com, set up an address book entry for "Undisclosed recipients" and select recipients for the hidden Bcc field.

Using just the Bcc field to keep email addresses private, but leaving the To field blank, may flag spam filters.

  1. Go to the View Switcher and select People.

    Selecting People in Outlook.com.
  2. Select New Contact.

    Selecting new contact in Outlook.com.
  3. In the First name and Last name text boxes, enter Undisclosed recipients.

    Entering in undisclosed recipients for a contact in Outlook.com.
  4. In the Email Address text box, enter your Outlook.com address (for example, example@outlook.com).

    Entering in an email address in a new contact in Outlook.com.
  5. Select Create.

  6. Go to the View Switcher and select Mail.

  7. Select New Message to create a new email message.

    Selecting new message in Outlook.com.
  8. In the To text box, enter Undisclosed recipients. As you enter the text, Outlook suggests contacts from your Address Book.

    Entering in an undisclosed email address in Outlook.com.
  9. In the auto-complete list, select Undisclosed recipients with your Outlook.com email address.

    Email address has been entered in Outlook.com.
  10. Select Bcc in the upper-right corner of the message window.

  11. In the Bcc text box, enter the recipients for your message. Separate addresses in the Bcc field with commas or by pressing Enter.

    You can use auto-complete to insert recipients.

    Several email addresses have been entered in the BCC field  Expert Tip: Tip: You can use auto-complete to insert recipients.
  12. Add a subject and compose the message.

    A fully addressed email using undisclosed recipients  Expert Tip: Tip: You can use auto-complete to insert recipients.
  13. Select Send.

    Sending an email in Outlook.com.
  14. The mail is sent to everyone in the Bcc field.