Can anyone tell me if there is a way to get all the headers of an outlook message from a COM plugin? I have gotten access to the _MailItem, and can get headers like To:, Subject:, etc. using get_To, get_Subject, etc. But the _MailItem interface doesn't seem to allow me to get, for example, Return-Path. Is there a way I can get access to the "raw" headers, or to any headers that Outlook didn't know what to do with?