Sending emails with Express.js and Node.js

package.json

{
  "name": "serverify",
  "version": "0.0.0",
  "description": "Simple web server powered by Node.js, Express.js and Nodemailer",
  "main": "server.js",
  "scripts": {
    "start": "node server.js",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "dependencies": {
    "body-parser": "^1.14.1",
    "compression": "^1.6.0",
    "express": "^4.13.3",
    "nodemailer": "^1.8.0"
  }
}

server.js

var express = require('express');
var compression = require('compression');
var bodyParser = require('body-parser');
var nodemailer = require('nodemailer');
var app = express();
var transporter = nodemailer.createTransport();

app.use(compression());
app.use(express.static(__dirname + '/dist/'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));

app.get('/', function (req, res) {
  res.sendFile(__dirname + '/dist/index.html');
});

app.post('/contact-us', function (req, res) {
	transporter.sendMail({
    from: '[email protected]',
    to: '[email protected]',
    subject: 'Contact Form',
    html: 'Name: ' + req.body.name + '<br>Email: ' + req.body.email + '<br>Message: ' + req.body.message
  }, function (error, info) {
    res.json({
     status: error ? 'fail' : 'success'
   });
  });
});

app.use(function(req, res, next) {
  res.sendFile(__dirname + '/dist/index.html');
});

app.listen(process.env.PORT || 80);