An email was addressed from outside our company ONLY to person A at our company. Apparently it also went to person B at our company, because person A saw a reply sent by person B. On that reply, it showed person B (added by system) as being a recipient of the original incoming message, even though the outside sender never copied person B intentionally. I don't think this is a bcc, but might be something set up by the administrator. I can find nothing on this in the help index. Is this part of the "Delegation"? How could this occur?