nodejs nodemailer中间件

var stransporter = nodemailer.createTransport({
    host:smtp-163.com',       //适合163
    secureConnection: true, // use SSL
    port: 465, // port
    auth: {
        user: '[e-mail]',
        pass: 'xxxxxxxxx'
    }
});

function ssl(){
    var mailOptions = {
        from: 'bsspirit ',
        to: '[e-mail]',
        subject: 'SSL Email',
        html: 'Hello world'
    }
    return mailOptions;
}

stransporter.sendMail(ssl(), function(error, info){
    if(error){
        console.log(error);
    }else{
        console.log('Message sent: ' + info.response);
    }
});