How would I find and then send an email to all of the emails in my inbox in Google Apps Script?

Question

I’m trying to make a GMail subscription service with Google Apps Script. I want it to send an email to every single email in my inbox. How would I do this?

Answer 1

function replyToInboxMessages() {
  const threads = GmailApp.getInboxThreads();
  threads.forEach(t => {
    t.getMessages().forEach(m =>{
      GmailApp.sendEmail(m.getFrom(),'Return Email','Quit Sending us Email');
    });
  });
}