On Fri, 9 Nov 2001, Martin W Sachs wrote: Please explain what this means: In any case you have just now stated that MIME headers are important, since the CPA is going to check/use them. The CPA doesn't check or use anything. It is a passive object that defines the IT configurations of two parties. It may specify that MIME headers are to be used but it is the sending MSH that sets them up and the receiving MSH that checks them. What you said. I apologize for not clearly expressing what I meant. Jim