X.400 Delivery Report Link back to IDOCs

Hi all,

we are currently evaluating the B2B-Add-on. I have tigged to receive delivery report from X.400 VAN provider and I also receive them. The polling X.400 sender channel is searching for following Sender Agreement:

So far so good. I am receiving a message into the pipeline containing following payload:

If I look to the Main Tab, I also see a good reference to the originally sent outbound message (where the X.400 delivery report is the answer to).

I have already looked into following topics, but not really get further:

http://scn.sap.com/docs/DOC-39575

http://scn.sap.com/docs/DOC-16003

I of course can create some ABAP or JAVA mapping to create a mapping to ALEAUD, but I would assume their must be something out-of-the-box at SAP PI to handle those acknowledgements automatically.

Have I missed any how-tos on that or can someone give me some good hints how to continue?

Thanks and merry x-mas to all of you!

   Regards Helmut