code: def get_delegate(owner)
        action = "#{SOAP_ACTION_PREFIX}/GetDelegate"
        resp = invoke("#{NS_EWS_MESSAGES}:GetDelegate", action) do |root|
          root.set_attr('IncludePermissions', 'true')
          build!(root) do
            mailbox!(root, {:email_address => {:text => owner}})
          end
        end
        parse_soap_response(resp)
      end
docs: Retrieves the delegate settings for a specific mailbox.
   @see http://msdn.microsoft.com/en-us/library/bb799735.aspx
  
   @param [String] owner The user that is delegating permissions