A Node.JS script that can be run from the command line

smtp-nodejs.mjs

#!/usr/bin/env node
/* eslint-disable no-console */
import { createTransport } from 'nodemailer';

/* Usage:
1. Copy this file to a directory of your choice
2. Edit the config object below to match your SMTP server
3. `npm install nodemailer`
4. Run the script with `node smtp-test.mjs`
*/

console.log('Starting smtp-test.mjs');

const config = {
  host: 'smtp.provider.net',
  port: 587,
  sender: 'Scriptkiddies 👻',
  from: '[email protected]',
  username: '[email protected]',
  password: 'XXX',
};

const message = {
  to: '[email protected]',
  subject: 'Mailer library Mail node.js',
  text: 'Mail by Mailer library',
  html: '<span> Hello World Mail sent from  mailer library',
};

async function main() {
  // create reusable transporter object using the default SMTP transport
  let transporter = createTransport({
    host: config.host,
    port: Number(config.port),
    secure: config.port == 465, // true for 465, false for other ports
    auth: {
      user: config.username,
      pass: config.password,
    },
  });

  // send mail with defined transport object
  let info = await transporter.sendMail({
    from: `${config.sender} <${config.from}>`,
    to: message.to,
    subject: message.subject,
    text: message.text,
    html: message.html,
  });

  console.log('Message sent: %s', info.messageId);
  // Message sent: <[email protected]>
}

main().catch(console.error);