邮箱域名黑名单

import smtplib
from email.mime.text import MIMEText

# 黑名单示例
blacklist = ['spam.com', 'phishing.net']

def is_blacklisted(domain):
    return domain in blacklist

def send_email(sender, recipient, subject, body):
    if is_blacklisted(sender.split('@')[-1]):
        print("Sender domain is blacklisted. Email not sent.")
        return

    msg = MIMEText(body)
    msg['Subject'] = subject
    msg['From'] = sender
    msg['To'] = recipient

    with smtplib.SMTP('smtp.example.com', 587) as server:
        server.starttls()
        server.login('your_email@example.com', 'your_password')
        server.sendmail(sender, recipient, msg.as_string())

# 示例调用
send_email('user@legit.com', 'recipient@example.com', 'Test Email', 'This is a test email.')