準備事項

1. QQ郵箱設定：進入QQ郵箱->設定->賬戶->POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服務->開啟POP3/SMTP服務，並複製pass祕鑰
2. 安裝nodemailer ：npm install nodemailer --save
3. 基於express的node.js後臺

程式碼編寫

router.post('/sendEmails', (req,res,next)=>{
    var transport = nodemailer.createTransport({
        host: "smtp.qq.com",
        secureConnection: true,
        port: 465,
        auth: {
            user: "
 
[email protected]",
            pass: "xxxxxxx"  //剛才
        }
    })

    var mailOptions = {
        from: "[email protected]",
        to: "[email protected]",
        subject: "一封郵件",
        text: "hello hello"
    }

    transport.sendMail(mailOptions,function(err,response){
        if(err) console.log(err)
        else console.log(response)
    })
})