nodemailer.js

require("https").globalAgent.options.ca =
  require("ssl-root-cas/latest").create();
const mailer = require("nodemailer");

const MAILER_HOST = "";
const MAILER_SECURE = true;
const MAILER_PORT = 465;
const MAILER_AUTH_USER = "";
const MAILER_AUTH_PASS = "";

let transporter = mailer.createTransport({
  host: MAILER_HOST,
  port: MAILER_PORT,
  secure: MAILER_SECURE, // true for 465, false for other ports
  auth: {
    user: MAILER_AUTH_USER, // generated ethereal user
    pass: MAILER_AUTH_PASS, // generated ethereal password
  },
});

const mailOptions = {
  from: `Sender <>`,
  to: "Reciever <>",
  subject: "Hello",
  text: "some text here to",
  greetingTimeout: 10,
};
transporter.sendMail(mailOptions);