RE: T2 Retry with Delivery Receipt

[David Fischer <david@drummondgroup.com>]

Even a phone call does not guarantee lack of delivery -- it may come later or
the administrator could miss it.  Failure can never be proven.  OTOH, if the
administrator (or MessageStatus or end-to-end Ack) perceives a success, this
should be definitive.  Even for success, an end-to-end Retry may be necessary to
get a required NRR (DR).

Confirmation of non-delivery is not really possible (Logic 101 -- you can never
prove a negative).  TTL may come into play here and help resolve this but TTL is
likely to be too long for time-sensitive issues.

Regards,

David Fischer
Drummond Group.

-----Original Message-----
From: Dan Weinreb [mailto:dlw@exceloncorp.com]
Sent: Thursday, September 13, 2001 10:32 AM
To: mwsachs@us.ibm.com
Cc: david@drummondgroup.com; ebxml-msg@lists.oasis-open.org
Subject: Re: T2 Retry with Delivery Receipt


   Date: Thu, 13 Sep 2001 09:03:02 -0400
   From: Martin W Sachs <mwsachs@us.ibm.com>

		    So the phone call might be necessary to confirm that the
   message was not received.

Or you can try MessageStatus over and over until, at last, you get an answer.