andrewmwilson

// You will also need to create a gmail filter to add the 'send-to-slack' label
// to any emails you want sent to slack

function sendEmailsToSlack() {
    var label = GmailApp.getUserLabelByName('send-to-slack');
    var messages = [];
    var threads = label.getThreads();
  
    for (var i = 0; i < threads.length; i++) {
        messages = messages.concat(threads[i].getMessages())