Node JS: Node mailer SMTP configuration

var smtpConfig = {
    host: 'smtp.gmail.com',
    port: 465,
    secure: true, // use SSL
    auth: {
        user: 'user@gmail.com',
        pass: 'pass'
    }
};

var poolConfig = {
    pool: true,
    host: 'smtp.gmail.com',
    port: 465,
    secure: true, // use SSL
    auth: {
        user: 'user@gmail.com',
        pass: 'pass'
    }
};

var directConfig = {
    name: 'hostname' // must be the same that can be reverse resolved by DNS for your IP
};


references:
https://community.nodemailer.com/2-0-0-beta/setup-smtp/