# import re
# import smtplib
# import dns.resolver

# # Address used for SMTP MAIL FROM command  
# fromAddress = 'corn@bt.com'

# # Simple Regex for syntax checking
# regex = '^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,})$'

# # Email address to verify
# inputAddress = input('Please enter the emailAddress to verify:')
# addressToVerify = str(inputAddress)

# # Syntax check
# match = re.match(regex, addressToVerify)
# if match == None:
# 	print('Bad Syntax')
# 	raise ValueError('Bad Syntax')

# # Get domain for DNS lookup
# splitAddress = addressToVerify.split('@')
# domain = str(splitAddress[1])
# print('Domain:', domain)

# # MX record lookup
# records = dns.resolver.query(domain, 'MX')
# mxRecord = records[0].exchange
# mxRecord = str(mxRecord)


# # SMTP lib setup (use debug level for full output)
# server = smtplib.SMTP()
# server.set_debuglevel(0)

# # SMTP Conversation
# server.connect(mxRecord)
# server.helo(server.local_hostname) ### server.local_hostname(Get local server hostname)
# server.mail(fromAddress)
# code, message = server.rcpt(str(addressToVerify))
# server.quit()

# #print(code)
# #print(message)

# # Assume SMTP response 250 is success
# if code == 250:
# 	print('Success')
# else:
# 	print('Bad')