购买到期后的域名

import whois
import datetime
import smtplib
from email.mime.text import MIMEText

def check_domain_expiration(domain):
    w = whois.whois(domain)
    expiration_date = w.expiration_date
    if isinstance(expiration_date, list):
        expiration_date = expiration_date[0]
    days_until_expiration = (expiration_date - datetime.datetime.now()).days
    if days_until_expiration <= 30:
        send_email(domain, days_until_expiration)

def send_email(domain, days_until_expiration):
    msg = MIMEText(f"Domain {domain} will expire in {days_until_expiration} days.")
    msg['Subject'] = 'Domain Expiration Reminder'
    msg['From'] = 'your_email@example.com'
    msg['To'] = 'recipient_email@example.com'

    s = smtplib.SMTP('smtp.example.com')
    s.send_message(msg)
    s.quit()

check_domain_expiration('example.com')