Question

Why is it a mistake to put e-mail addresses of people who don't know each other in the "To:" field?

Answer 1

To do this, click the Options tab, and in the Show Fields section, click Bcc. The Bcc field is added to the Message window. Add the email addresses for all the people you want to receive this email either by clicking the Bcc button and selecting them, or by entering them manually in the Bcc field.