企业网站的域名会过期

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

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.now()).days
    return days_until_expiration

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

    smtp_server = smtplib.SMTP('smtp.example.com', 587)
    smtp_server.starttls()
    smtp_server.login("your_email@example.com", "your_password")
    smtp_server.sendmail("your_email@example.com", "recipient_email@example.com", msg.as_string())
    smtp_server.quit()

domain = "example.com"
days_until_expiration = check_domain_expiration(domain)
if days_until_expiration < 30:
    send_reminder_email(domain, days_until_expiration)