在html nodemailer中输出base64图像

npm install nodemailer

const nodemailer = require('nodemailer');

let transporter = nodemailer.createTransport({
    host: 'smtp.exmail.qq.com',
    port: 465,
    secure: true,
    auth: {
        user: 'your_email@example.com',
        pass: 'your_password'
    }
});

let mailOptions = {
    from: 'your_email@example.com',
    to: 'recipient@example.com',
    subject: 'HTML邮件 with base64 image',
    html: '<h1>这是一封包含base64图像的HTML邮件</h1><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAA...">'
};

transporter.sendMail(mailOptions, (error, info) => {
    if (error) {
        console.log(error);
    } else {
        console.log('邮件已成功发送：' + info.response);
    }
});