trymailing.js

'use strict';

const nodemailer = require('nodemailer');

const smtpConfig = {
    host: 'smarthost.yahoo.com',
    port: 25,
    secure: false, // upgrade later with STARTTLS
    auth: {
        user: 'jerryzhang@yahoo.com',
        pass: 'pass'
    }
};

// create reusable transporter object using the default SMTP transport
const transporter = nodemailer.createTransport({ smtpConfig });

// setup email data with unicode symbols
const mailOptions = {
    from: '"Jerry Zhang" <jerryzhang@yahoo-inc.com>', // sender address
    to: 'jerryzhang@yahoo-inc.com', // list of receivers
    subject: 'Hello ✔', // Subject line
    text: 'Hello world ?', // plain text body
    html: '<b>Hello world ?</b>' // html body
};

// send mail with defined transport object
transporter.sendMail(mailOptions, (error, info) => {
    if (error) {
        return console.log(error);
    }
    console.log('Message %s sent: %s', info.messageId, info.response);

    return [null, info.response];
});