Mail Multiple Recipients Without Revealing Addresses
When you normally send an email to multiple people, each person can see all the other recipient's names and email addresses. This unveils all the personal data, and the long stream of names is not pleasant to look at either.
Now, hiding the recipients is easy using the Bcc: field, but maybe we should indicate that a message had other recipients? If we could do that right in the To: line, that might be even better. Let's put "Undisclosed recipients" in that field.
Send an Email to Undisclosed Recipients in Mac OS X Mail
First, we'll create a convenient address book entry to make mailing our undisclosed recipients even easier:
- Open OS X Contacts (or the Mac OS X Address Book).
- Click + (Create a new card).
- Type "Undisclosed" over First.
- Hit Enter.
- Type "recipients" over Last.
- Click on Email under home (or work).
- Type your email address.
- Quit Contacts (or Address Book).
To send an email to multiple, undisclosed recipients with Mac OS X Mail:
- Start a new message.
- Begin typing "Undisclosed" in the To: field and let Mail complete the address.
- Press Enter.
- If you cannot see a Bcc: field, select View | Bcc Address Field from the menu.
- Type the email addresses of all recipients in the Bcc: field.
- Separate addresses by comma.
- You can also click the Address button in the toolbar and drag and drop recipients to the Bcc: field or use an address book group.
- Compose and eventually send your message.

