Valid Email Checker JavaScript

checkEmail.js

const net = require('net')

const socket = net.createConnection(25, 'gmail-smtp-in.l.google.com', () => {
	console.log('Connected!')
	socket.write('HELO gmail\r\n')
	socket.write('MAIL FROM: <noreply@mayank.org>\r\n')
	socket.write('RCPT TO: <mkgupta74d@gmail.com>\r\n')
	socket.write('QUIT\r\n')
})
socket.on('data', (buff) => console.log(buff.toString()))