You can send an email to a group of people without letting other people know the group also received the email. You can send the email to undisclosed receipts with the steps below:
Step 1: Click "New Email" from Home tab;
Step 2: Type all the email address in the Bcc box (e.g., James and Leo);
Note: If you cannot find the Bcc box in the new email, please refer to how to show or hide Bcc field.
Step 3: Click "Send" to send out the email.
