verify email of gmails and some other email provider

gmail_email_verify.py

#pip install dnspython
import re
import smtplib
import dns.resolver 
fromAddress = 'noreply@verifyemailaddress.org'
regex = '^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,})$'
inputAddress = "YOUR EMAIL HERE"
addressToVerify = str(inputAddress)
match = re.match(regex, addressToVerify)
if match == None:
	print('Bad Syntax')
	raise ValueError('Bad Syntax')
splitAddress = addressToVerify.split('@')
domain = str(splitAddress[1])
print('Domain:', domain)
records = dns.resolver.query(domain, 'MX')
mxRecord = records[0].exchange
mxRecord = str(mxRecord)
print("mxRecord :"+mxRecord)
server = smtplib.SMTP()
server.set_debuglevel(0)
server.connect(mxRecord)
server.helo(server.local_hostname)
server.mail(fromAddress)
code, message = server.rcpt(str(addressToVerify))
server.quit()
if code == 250:
	print('Success')
else:
	print('Bad')