到期域名怎么抢注

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

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

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