Check if Email id exists

Emailverifier.py

import re
import smtplib
import dns.resolver

def Verifier(eid):
    verify=eid
    fromAddress="[email protected]"
    regex=r"[^@]+@[^@]+\.[^@]+"
    match=re.match(regex,verify)

    if match==None:
        print("Bad Syantax")
        raise ValueError("Bad Syntax")
    splitAddress=verify.split("@")
    domain=str(splitAddress[1])
    print("domain:",domain)

    records=dns.resolver.query(domain,"MX")
    mxRecord=records[0].exchange
    mxRecord=str(mxRecord)

    server=smtplib.SMTP()
    server.set_debuglevel(4)

    server.connect(mxRecord)
    server.helo(server.local_hostname)
    server.mail(fromAddress)
    code,message=server.rcpt(str(verify))
    server.quit()

    if code==250:
        return True
    else:
        return False