Setting MessageHeaders.To field gets overwritten
问题 Here's the scenario: I'm trying to send a SOAP message to an intermediary router service. That service only cares about my SOAP message headers, and uses the WS-Addressing To header to forward along my message. I need to basically POST a request like the following to the router service: POST http://gatewayRouter/routingService HTTP/1.1 Content-Type: application/soap+xml; charset=utf-8 Host: gatewayRouter Content-Length: 8786 Expect: 100-continue Connection: Keep-Alive <s:Envelope xmlns:s=