Email Validator

check_email.py

# On Python3 run: `pip3 install dnspython`

import dns.resolver
import re

def verify_email(email):
		regex = '^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$'
		if re.search(regex,email):
			pass
		else:
			return False
		domain = email.split('@')[1]
		records = []
		try:
			for x in dns.resolver.query(domain, 'MX'):
				records.append(x)
		except dns.resolver.NoAnswer:
			return False
		if len(records) > 0:
			return True
		return False