This sample shows how to use Delivery Notification on a Send Port to catch and react to adapter send errors inside an Orchestration.

Key Take Home Points:
– Delivery Notification is not available on Early Bound Ports.
– Must import System.Web.Services to cast the SOAP exception
– Set Send Port retries to 0
– Must use a Synchronized scope
– Does not work with Send Port Groups

Get more information from the original blog post on this topic: