Ok, thank you.
Hopefully there will be a patch available very soon then
When you say that the Return-Path info is missing, I would just like to point out that if I send a test mail from my work Outlook 2013 to my privet Gmail address and choose to look at the header info(Show original), the Return-Path is there!
I will have a talk with our Exchange guru tomorrow. But I think my simple test above, should prove that the header info, does contain the Return-Path.
Or am I misunderstanding something?
Thank you again.