You may receive email, especially spam, that does not seem to contain your email address in the usual address fields, and wonder how the email was delivered to you in that case.

When sending an email to someone, it is not required to list the email address in the To: or Cc: address fields. Email can be sent Bcc (Blind Carbon Copy), which means that it is sent to someone without listing the email address in the usual address fields of the email message.

You should be able to determine to which address the email was sent by examining the full email headers. The FutureQuest^® mail system inserts a Delivered-To field into the message headers, and reviewing these fields will indicate the intended recipient of the email.