SOAPpy Client Vs .NET Server

[Glauco]

I'm Trying to use a simple python SOAP client

from SOAPpy import SOAPProxy
self.SOAPproxy = SOAPProxy( SOAPsrv, soapaction=SOAPact, 
           namespace=SOAPns)
page_result = self.SOAPproxy.invoke(SOAPws,SOAPhead )


But in a .NET SOAP Server i receive  a "Server did not find required
SOAPAutenticazione SOAP header in the message" but i've controlled 
header and this is OK . NOW... Server Administrator write to me that 
error occurs because i don't use a standard SOAP client . . .but i don't 
think so..

Some ideas ?


Glauco