Node.js отправка почты

Почту можно отправлять при помощи nodemailer – https://github.com/nodemailer/nodemailer

Устанавливаем:

npm i nodemailer

Код получится примерно такой:

const nodemailer = require("nodemailer");

// async..await is not allowed in global scope, must use a wrapper
async function main(textMail){

  // Generate test SMTP service account from ethereal.email
  // Only needed if you don't have a real mail account for testing

  // create reusable transporter object using the default SMTP transport
  let transporter = nodemailer.createTransport({
    host: "smtp.yandex.ru",
    port: 465,
    secure: true, // true for 465, false for other ports
    auth: {
      user: "user", // generated ethereal user
      pass: "pass" // generated ethereal password
    }
  });

  // send mail with defined transport object
  let info = await transporter.sendMail({
    from: '"robot@bytelandia.ru', // sender address
    to: "info@bytelandia.ru", // list of receivers
    subject: "Hello ✔", // Subject line
    text: textMail, // plain text body
    //html: "<b>Hello world?</b>" // html body
  });

  console.log("Message sent: %s", info.messageId);

}

main("Приветик").catch(console.error);