gistfile1.txt

var IMAP = require('imap');

var imap = new IMAP({
  user: 'frontapp@gmail.com',
  password: 'redcontact',
  host: 'imap.gmail.com',
  port: 993,
  secure: true,
  debug: console.log
});

imap.open({inbox: 'INBOX', sent: '[Gmail]/Sent Mail'}, function (err, mailboxes) {

});

var options = {
  body: 1,
  structure: true,
  headers: ['from', 'to', 'subject']
};

imap.fetch(range, options).on('message', function (msg) {
  msg.on('data', function (chunk) {
    // body data incoming
  });

  msg.on('end', function () {
    // message is fully parsed
  });
}).on('end', function (err) {
  // no more messages or error happened
});

var query = {
  inbox: [['HEADER', 'FROM', 'CONTACT']],
  sent: [['HEADER', 'TO', 'CONTACT']]
};

var promise = imap.search(query, options);