dnsRecords.js

'use strict';

let dns = require('dns'),
    Promise =  require('bluebird'),
    resolve = Promise.promisify(dns.resolve),
    _ = require('lodash');

function dnsRecords(addr) {
  const rrtypes = ['A', 'MX'];
  let promises = rrtypes.map(rrtype => resolve(addr, rrtype));

  return Promise.all(promises)
  .then((responses) => {

    return _.zipObject(rrtypes, responses);
  });

}

module.exports = dnsRecords;