> Those "message opened" acknowledgements are being generated because
> the *SENDER* - the person who posted the message to the list - requested
 
Sorry, I don't think so.  The errors come from only specific subscribers
at specific address and they occur for *all* items.  Some of those items
are mine (some to the list, some private) and I know full well I did not
request an acknowledgement.
 
The problem is with the recipient, not the original sender.  Even if
the original sender did request an acknowledgement such should go to
the original sender, not the list nor owner-listname, no?
 
Douglas
       Douglas Winship   Hays County, Texas  [log in to unmask]
                    Secondary AUTOCAT Listowner
                              MEDLAB-L