title: Biztalk Send port calling .asmx service
body: <blockquote>
    <p>Error details: System.ServiceModel.ProtocolException: The remote
    server returned an unexpected response: (400) Bad Request. --->
    System.Net.WebException: The remote server returned an error: (400)
    Bad Request.    at
    System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)<br>
    at
    System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult
    result)    --- End of inner exception stack trace ---</p>
    
    <p>Server stack trace:     at
    System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)<br>
    at
    System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult
    result)    at
    System.ServiceModel.Channels.ServiceChannel.EndCall(String action,
    Object[] outs, IAsyncResult result)    at
    System.ServiceModel.Channels.ServiceChannel.EndRequest(IAsyncResult
    result)</p>
    
    <p>Exception rethrown at [0]:     at
    System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage
    reqMsg, IMessage retMsg)    at
    System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData&amp;
    msgData, Int32 type)    at
    System.ServiceModel.Channels.IRequestChannel.EndRequest(IAsyncResult
    result)    at
    Microsoft.BizTalk.Adapter.Wcf.Runtime.WcfClient`2.RequestCallback(IAsyncResult
    result)   MessageId:  {656781BB-FFA0-466B-A001-83ADCD4EEB78}</p>
  </blockquote>
  
  <p>used BasicHTTPbindings...no login credentials. Works while testing with other WCF testing tools. </p>