const nodemailer = require('nodemailer');

const mailConfig = {
    secure: true,
    host: 'smtp.126.com',
    port: 465,
    auth: {
        user: 'xxxxx@126.com', // your account and password
        pass: 'xxxxx'
    }
};
const transporter = nodemailer.createTransport(mailConfig);

function send(args) {
    const mailOptions = {
        from: mailConfig.auth.user,
        to: args.to,
        subject: args.subject || 'Hello ✔',
        html: args.html || '<b>Hello world ?</b>',
    };

    transporter.sendMail(mailOptions, (error, info) => {
        if (error) {
            return log('send fail', error);
        }
        console.log('Message %s sent: %s', info.messageId, info.response);
    });
}

send({
    to: 'xxx', // another email
    subject: 'test',
    html: '<div>test</div>'
});