问nodemailer检查邮件是否已发送

EN

const nodemailer = require('nodemailer');

 let transporter = await nodemailer.createTransport({
    host: "smtp.zoho.com",
    port: 465,
    secure: true, 
    auth: {
      user: 'info@mymail.gr', 

      pass: '******', 
    },
    tls: {
      rejectUnauthorized: false
    } 
  });

let info = await transporter.sendMail({
    from: '"Test mail" <info@mymail.gr>', // sender address
    to: "infodasfdfs23432d@mymail.gr", // list of receivers
    subject: "Hello ✔", // Subject line
    text: "Hello world?", // plain text body
    html: "<b>Hello world?</b>", // html body
  }, (error, result) => {
    if (error) return console.error(error);
  });