Keith Moore wrote:
no, "management" vs. "application" messages is not where the line should
be drawn. Return-Path is provided so that applications can use it when
it's appropriate. Most automatic responses should go to Return-Path.
What if there are multiple addresses in From: and Sender: was just the
messenger, or what if From: is a group address? The application acks fall
apart if basic features of the messaging network are used but the
application sends its ack to the node instead of the application
--
Eric A. Hall http://www.ehsco.com/
Internet Core Protocols http://www.oreilly.com/catalog/coreprot/