I cleared out the messages but the error is everytime the same. I now tried to go with the passThru pipeline and got 2 rooting error messages
This service instance exists to help debug routing failures for instance "{C1B592AA-DF19-4465-AAF6-B3390C00BC7E}". The context of the message associated with this instance contains all the promoted properties at the time of the routing failure.
and
The published message could not be routed because no subscribers were found. This error occurs if the subscribing orchestration or send port has not been enlisted, or if some of the message properties necessary for subscription evaluation have not been promoted. Please use the Biztalk Administration console to troubleshoot this failure.
Maybe this gives a hint what is wrong…
Concerning the configuration, to be honest i don't know which information i should post…