Move Incoming NGPVAN Political Emails in Gmail to Spam (Google Apps Script)

Filter-NGPVAN-Political-Emails.md

1. Go to https://script.google.com
2. Create a New Project
3. Replace the Code.gs file it creates for you with the javascript below (copy/paste)
4. Save the script
5. Go to Triggers (looks like an alarm clock on left-hand side)
6. Create a Trigger that acts every 10 minutes and calls filterNGPVANSpam
7. You'll need to authorize this script to act on your behalf, which may require that you use the scary "Advanced" section to allow the script to read/write to your email inbox.

filterNGPVANSpam.js

// Adapted with thanks from:
//   https://www.geektron.com/2014/01/how-to-filter-gmail-using-email-headers-and-stop-via-spam/

function filterNGPVANSpam() {
  var threads = GmailApp.getInboxThreads(0, 5);
  threads.concat(GmailApp.search('category:promotions', 0, 5));
  for (var i = 0; i < threads.length; i++) {
    var messages = threads[i].getMessages();
    for (var j = 0; j < messages.length; j++) {
      var message = messages[j];
      var body = message.getRawContent();

      var matchedNGPVAN =
        body.match(/^List-Unsubscribe:\s*<(.*ngpvan\.com.*)>\s*$/m) ||
        body.match(/^Received:.*ngp(van|web)\.com/m);

      if(matchedNGPVAN){
        GmailApp.moveThreadToSpam(threads[i]);
      }
      Utilities.sleep(500);
    }
  }
}

THANK YOU!

Thank you for this. For some reason this script didn't work for me at first. It just gave an error about function name before getting to the authentication part. To fix it, I added a line break after the opening parenthesis on line 4, so that my new line 5 only had that opening parenthesis on it, with everything else moved down one line. Then it worked fine.

By the way, for anyone that doesn't know what NGPVAN is, they are the email system that most of the Democratic candidates use. When you try to unsubscribe from their list, you only get removed from that one candidate's list, but not the master NGPVAN list. So you have to unsubscribe to every candidate that comes along, one at a time, forever. :(

thank you!