服务器升级通知

import smtplib
from email.mime.text import MIMEText

def send_upgrade_notification(to_email, subject, message):
    from_email = "noreply@example.com"
    smtp_server = "smtp.example.com"
    smtp_port = 587
    smtp_username = "your_username"
    smtp_password = "your_password"

    msg = MIMEText(message)
    msg['Subject'] = subject
    msg['From'] = from_email
    msg['To'] = to_email

    try:
        server = smtplib.SMTP(smtp_server, smtp_port)
        server.starttls()
        server.login(smtp_username, smtp_password)
        server.sendmail(from_email, [to_email], msg.as_string())
        server.quit()
        print("Notification sent successfully!")
    except Exception as e:
        print(f"Failed to send notification: {e}")

# 使用示例
send_upgrade_notification("user@example.com", "Server Upgrade Notification", "Dear User, our servers will be undergoing maintenance and upgrades on [date] from [time] to [time]. Please ensure your data is backed up and be prepared for possible service interruptions.")