# File lib/em/protocols/smtpclient.rb, line 185
      def unbind
        unless @succeeded
          @return_values.elapsed_time = Time.now - @return_values.start_time
          @return_values.responder = @responder
          @return_values.code = @code
          @return_values.message = @msg
          set_deferred_status(:failed, @return_values)
        end
      end