David,
I must disagree with you on item 9. It makes NO sense to return a signed receipt for a document that did not contain an original signature. I know that the intent is to provide the message originator with some sense of security; however, it is not really achieved and it may in fact provide them a false sense of security. They may assume that the signed receipt makes a legal statement that it cannot make. This is not a technical issue, it is a legal and business issue--we will do the community a disservice if we support signed receipts for unsigned messages.I have been around this argument many times with the same findings.
Ralph Berwanger
