test.js

var MailListener = require('./');

var mailListener = new MailListener({
  username: 'xxx',
  password: 'xxx',
  host: 'imap.gmail.com',
  port: 993,
  tls: true,
  tlsOptions: { rejectUnauthorized: false },
  mailbox: 'INBOX',
  fetchUnreadOnStart: true,
  attachments: true,
  attachmentOptions: { directory: 'attachments/' },
  fetchingPauseThreshold: 5 * 1048576, // 5 mb
});

mailListener.start();

mailListener.on('server:connected', function () {
  console.log('imapConnected');
});

mailListener.on('server:disconnected', function () {
  console.log('imapDisconnected');
  setTimeout(function () {
    console.log('Trying to establish imap connection again');
    mailListener.restart();
  }, 5 * 1000);
});

mailListener.on('error', function (err) {
  console.log(err);
});

mailListener.on('mail', function (mail) {
  console.log(mail);
});

mailListener.on('attachment', function (attachment) {
  console.log(attachment);
});