NoMitnick

function noMitnick() {
    try {

    // Get the most recent 50 threads in your inbox
    var threads = GmailApp.search("in:inbox", 0, 50);

    // If there are threads
    if (threads.length > 0) {

      // For each thread
      for (var t=threads.length-1; t>=0; t--) {

        // Get the current thread we are iterating over
        var thread = threads[t];

        // Get the first message in the thread
        var message = thread.getMessages()[0];

        // Get the from address
        var from = message.getFrom();

        // See if the raw content has the header `X-PHISHTEST`
        if ((message.getHeader("X-PHISHTEST") != '') || (message.getHeader("X-MarketoID") != '') || (message.getHeader("X-Mailgun-Dkim") != '')) {

          // Log that the filter was created
          Logger.log("Filter phishing " + message.getDate() + "::" + message.getSubject() + " :: " + from);

          // Mark the thread as trash it
          thread.moveToTrash();
        }
      }
    }
  } catch (e) {
    Logger.log(e.toString());
  }
}