🖥️ 运行效果

🚀 实例简介

一个功能完整的 Tkinter GUI 邮件发送工具，支持通过 SMTP 协议发送 HTML 格式的富文本邮件。内置多种 SMTP 服务器预设（QQ、Gmail、163等），支持 SSL/TLS 加密连接，提供 HTML 模板生成、实时预览、发送日志记录等功能。适合日常邮件批量发送、自动化通知邮件、HTML 报告邮件推送等场景。

💻 核心代码

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Python邮件自动化：SMTP发送HTML邮件
功能：通过GUI界面配置SMTP服务器，编写HTML格式邮件并发送
支持：HTML模板预览、附件添加、SSL/TLS加密连接
"""

import tkinter as tk
from tkinter import ttk, messagebox, scrolledtext
import smtplib
import json
import os
import platform
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.utils import formataddr
from datetime import datetime

CHINESE_FONT = "WenQuanYi Zen Hei" if platform.system() == "Linux" else "Microsoft YaHei"

# 默认SMTP配置模板
DEFAULT_SMTP_CONFIG = {
    "smtp.qq.com": {"port": 465, "ssl": True},
    "smtp.gmail.com": {"port": 465, "ssl": True},
    "smtp.163.com": {"port": 465, "ssl": True},
    "smtp.126.com": {"port": 465, "ssl": True},
    "smtp.aliyun.com": {"port": 465, "ssl": True},
}

# HTML邮件模板
HTML_TEMPLATE = """




    

        
{title}
    
    

        
{content}
        

        

            此邮件由 Python SMTP 自动化系统发送 | {timestamp}
        
    


"""


class SMTPMailSender:
    """SMTP邮件发送核心类"""
    
    def __init__(self, smtp_server, smtp_port, username, password, use_ssl=True):
        self.smtp_server = smtp_server
        self.smtp_port = smtp_port
        self.username = username
        self.password = password
        self.use_ssl = use_ssl
    
    def send_html_email(self, from_name, to_addr, subject, html_content):
        """发送HTML格式邮件"""
        msg = MIMEMultipart('alternative')
        msg['From'] = formataddr((from_name, self.username))
        msg['To'] = to_addr
        msg['Subject'] = subject
        
        # 添加纯文本备选内容
        text_part = MIMEText(subject, 'plain', 'utf-8')
        msg.attach(text_part)
        
        # 添加HTML内容
        html_part = MIMEText(html_content, 'html', 'utf-8')
        msg.attach(html_part)
        
        try:
            if self.use_ssl:
                server = smtplib.SMTP_SSL(self.smtp_server, self.smtp_port, timeout=10)
            else:

💡 适用场景

办公自动化、数据分析、快速原型开发