我想根据当前日期扫描文件夹路径。如果文件不存在，请发送电子邮件

import os
import smtplib
from email.mime.text import MIMEText
from datetime import date

# 当前日期
current_date = date.today()

# 文件夹路径
base_path = "/path/to/folder"
folder_path = os.path.join(base_path, str(current_date))

# 检查文件夹是否存在
if not os.path.exists(folder_path):
    # 发送电子邮件
    sender = "sender@example.com"
    receiver = "receiver@example.com"
    subject = "文件夹不存在"
    message = f"文件夹路径 '{folder_path}' 不存在，请检查。"
    
    # 构建邮件内容
    msg = MIMEText(message)
    msg["Subject"] = subject
    msg["From"] = sender
    msg["To"] = receiver
    
    # 发送邮件
    smtp_server = "smtp.example.com"
    smtp_port = 587
    smtp_username = "username"
    smtp_password = "password"
    
    with smtplib.SMTP(smtp_server, smtp_port) as server:
        server.starttls()
        server.login(smtp_username, smtp_password)
        server.sendmail(sender, receiver, msg.as_string())