Re: AD review comments on

> > > Noting when a message makes it to the recipient, rather than merely being
> > > deposited into the recipient's mailbox, is the key conceptual point.
> >
> >so when the fax recipient reads the piece of paper, do we call that delivery?
> 
> i don't recall saying anything about reading, so why are you introducing
> it  to the discussion.?

okay - let me try again.  when the fax recipient picks up the piece of paper,
do we call that delivery?

in either fax or email, there are potentially two or three additional steps
between when the message leaves control of the system that conveyed the
message and when the message "makes it to the recipient".  and neither a POP 
nor an IMAP access is defined to have that meaning.

> The distinction about different types of delivery has to do with the degree
> of responsibility to which one can hold the recipient.
> 
> There is presumed to be considerably more responsibility when it is
> "handed" to them, than when the message is deposited in some distant box,
> waiting for the recipient to retrieve it at some unknown point in the future.

perhaps, but the only protocol we have to indicate that a message was
"handed" to a recipient is MDN.

Keith