WebHttpBinding: Log all errors to service logfile

Question

I have a self-hosted WCF service that uses a WebHttpBinding. In the implementation of the service, all exceptions are caught and a appropriate message is returned to the caller. All exceptions are also logged to the service logfile.

catch (Exception ex)
        {
            _log.Error("Error posting message", ex);
            WebOperationContext.Current.OutgoingResponse.StatusCode = HttpStatusCode.InternalServerError;
            return string.Format("{0}:error={1}", (int)HttpStatusCode.InternalServerError, ex.Message);
        } 

However, some situations are intercepted by the WCF framework. e.g.: when the client sends a message that exceeds the configured quotum, i never get an entry in my log file.

In fact, i only found this, by adding this to the config file, and inspecting the generated trace file.

<system.diagnostics>
<sources>
  <source name="System.ServiceModel" switchValue="Information, ActivityTracing" propagateActivity="true">
    <listeners>
      <add name="xml" />
    </listeners>
  </source>
  <source name="CardSpace">
    <listeners>
      <add name="xml" />
    </listeners>
  </source>
  <source name="System.IO.Log">
    <listeners>
      <add name="xml" />
    </listeners>
  </source>
  <source name="System.Runtime.Serialization">
    <listeners>
      <add name="xml" />
    </listeners>
  </source>
  <source name="System.IdentityModel">
    <listeners>
      <add name="xml" />
    </listeners>
  </source>
</sources>
<sharedListeners>
  <add name="xml" type="System.Diagnostics.XmlWriterTraceListener" initializeData="c:\test\Traces.svclog" />
</sharedListeners>

Is there a way to get these kind of errors visible in my own logfile?