MSakamaki

// Inspired in http://www.johneday.com/422/time-based-gmail-filters-with-google-apps-script

// Deletes old marked conversations
function cleanUp() {
  var delayDays = 5; // # of days before messages are moved to trash
  var label = "Delete me"; // label to identify the messages
  var maxDate = new Date(Date.now() - delayDays * 24 * 60 * 60 * 1000);
  var userLabel = GmailApp.getUserLabelByName(label);
  if (!userLabel) {
    return;