I think now it works

.gitignore

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+config.json

LICENSE

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+MIT License
+
+Copyright (c) 2024 earthjasonlin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# MailForwarder
+
+**此README由 ChatGPT-4o 生成**
+
+这个项目是一个邮件自动转发器，能够从指定的邮箱中读取未读邮件，并将其自动转发到配置文件中指定的收件人邮箱中。该项目支持使用代理服务器进行连接，并且可以处理包含附件的邮件。
+
+## 功能特性
+
+- 自动转发未读邮件
+- 支持 HTML 和纯文本格式的邮件内容
+- 支持邮件附件的转发
+- 支持通过 SOCKS5 代理进行连接
+- 支持多账户配置
+- 可配置的检查间隔
+
+## 安装与配置
+
+### 环境要求
+
+- Python 3.6+
+- 需要安装以下 Python 库:
+  - json
+  - imaplib
+  - smtplib
+  - email
+  - socks
+  - logging
+
+### 安装依赖
+
+```sh
+pip install pysocks
+```
+
+### 配置文件
+
+请在项目根目录下创建一个名为 `config.json` 的配置文件，并根据以下格式进行配置（见`config-example.json`）：
+
+```json
+{
+  "check_interval": 60,
+  "accounts": [
+    {
+      "email": "your_email@example.com",
+      "password": "your_password",
+      "enabled": true,
+      "imap": {
+        "server": "imap.example.com",
+        "port": 993,
+        "use_ssl": true
+      },
+      "smtp": {
+        "server": "smtp.example.com",
+        "port": 587,
+        "use_ssl": false,
+        "use_starttls": true
+      },
+      "forward": {
+        "to": ["forward_to@example.com"]
+      },
+      "proxy": {
+        "enabled": false,
+        "server": "proxy.example.com",
+        "port": 1080
+      }
+    }
+  ]
+}
+```
+
+### 配置项说明
+
+- `check_interval`: 检查邮件的时间间隔，单位为秒。
+- `accounts`: 配置多个邮箱账户。
+  - `email`: 邮箱地址。
+  - `password`: 邮箱密码。
+  - `enabled`: 是否启用该账户。
+  - `imap`: IMAP 服务器配置。
+    - `server`: IMAP 服务器地址。
+    - `port`: IMAP 服务器端口。
+    - `use_ssl`: 是否使用 SSL 连接。
+  - `smtp`: SMTP 服务器配置。
+    - `server`: SMTP 服务器地址。
+    - `port`: SMTP 服务器端口。
+    - `use_ssl`: 是否使用 SSL 连接。
+    - `use_starttls`: 是否使用 STARTTLS 加密。
+  - `forward`: 转发配置。
+    - `to`: 转发邮件的收件人地址列表。
+  - `proxy`: 代理服务器配置。
+    - `enabled`: 是否启用代理。
+    - `server`: 代理服务器地址。
+    - `port`: 代理服务器端口。
+
+## 使用说明
+
+1. 确保已经安装了所有依赖项，并正确配置了 `config.json` 文件。
+2. 运行脚本：
+   ```sh
+   python main.py
+   ```
+
+## 日志
+
+该脚本会在控制台输出日志信息，记录程序的运行状态、邮件处理情况以及错误信息。
+
+## 注意事项
+
+- 请确保配置文件中的邮箱账号和密码正确无误，并且邮箱服务支持 IMAP 和 SMTP 协议。
+- 转发的邮件会包含一个自定义的头部和尾部，以提示收件人该邮件是自动转发的邮件。
+
+## 许可证
+
+本项目遵循 MIT 许可证。详细信息请参见 LICENSE 文件。

config-example.json

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+{
+    "accounts": [
+        {
+            "enabled": false,
+            "email": "sample@example.com",
+            "password": "password",
+            "imap": {
+                "server": "imap.example.com",
+                "port": 993,
+                "use_ssl": true
+            },
+            "smtp": {
+                "server": "smtp.example.com",
+                "port": 465,
+                "use_ssl": true,
+                "use_starttls": false
+            },
+            "proxy": {
+                "enabled": true,
+                "server": "127.0.0.1",
+                "port": 7897
+            },
+            "forward": {
+                "to": ["forward@example.com", "forward2@example.com"]
+            }
+        },
+        {
+            "enabled": true,
+            "email": "active@example.com",
+            "password": "password",
+            "imap": {
+                "server": "imap.active.com",
+                "port": 993,
+                "use_ssl": true
+            },
+            "smtp": {
+                "server": "smtp.active.com",
+                "port": 465,
+                "use_ssl": false,
+                "use_starttls": true
+            },
+            "proxy": {
+                "enabled": false,
+                "server": "127.0.0.1",
+                "port": 7897
+            },
+            "forward": {
+                "to": ["forward@example.com"]
+            }
+        }
+    ],
+    "check_interval": 10
+}

maincopy.py

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+import json
+import imaplib
+import smtplib
+import email
+from email.mime.multipart import MIMEMultipart
+from email.mime.text import MIMEText
+import time
+import logging
+import socks
+import socket
+
+from email.header import decode_header
+
+def decode_mime_words(s):
+    decoded_fragments = decode_header(s)
+    return ''.join(
+        str(fragment, encoding or 'utf-8') if isinstance(fragment, bytes) else fragment
+        for fragment, encoding in decoded_fragments
+    )
+
+def add_mask(original_msg, content):
+    original_subject = decode_mime_words(original_msg['Subject'])
+    header = f"""<table align=center style="background:#3d3d3d;padding:8px 16px;margin-top:30px;margin-bottom:30px;width:96%;border-radius:6px;max-width:1200px"width=100% bgcolor=#3D3D3D id=relay-email-header><tr><td style=font-size:xx-large;font-weight:bolder;color:#fff width=50% align=left>Forwarded Email<td style=color:#fff;text-align:right width=50% align=right><p>From: {original_msg['From']}<p>To: {original_msg['To']}<p>Subject: {original_subject}</table><table align=center style=padding:0;max-width:850px width=100%><tr><td style=padding-left:15px;padding-right:15px width=100%>"""
+    footer = f"""<table align=center bgcolor=#3D3D3D style="background:#3d3d3d;padding:8px 16px;margin-top:30px;margin-bottom:30px;width:96%;border-radius:6px;max-width:1200px"width=100%><tr><td align=left style=color:#d22;font-size:xx-large;font-weight:bolder width=50%>FORWARDED<td align=right style=color:#fff;text-align:left width=50%><p style=font-size:x-large;font-weight:700;margin-block:0>Notice:<p style=margin-block:.1em> This is a automatically forwarded email, which means it may contains something bad.<p style=margin-block:.1em> You shouldn't reply directly to this email, it will never reach your destination!</table>"""
+    return header + content + footer
+
+def load_config(config_file='config.json'):
+    with open(config_file, 'r') as file:
+        config = json.load(file)
+    return config
+
+def set_proxy(proxy_config):
+    socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5, proxy_config['server'], proxy_config['port'])
+    socket.socket = socks.socksocket
+
+def setup_logging():
+    logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
+    logger = logging.getLogger()
+    return logger
+
+def get_unforwarded_emails(account_config, logger):
+    if account_config['proxy']['enabled']:
+        set_proxy(account_config['proxy'])
+    
+    if account_config['imap'].get('use_ssl', True):
+        imap = imaplib.IMAP4_SSL(account_config['imap']['server'], account_config['imap']['port'])
+    else:
+        imap = imaplib.IMAP4(account_config['imap']['server'], account_config['imap']['port'])
+
+    imap.login(account_config['email'], account_config['password'])
+    
+    if "163.com" in account_config['email'] or "126.com" in account_config['email']:
+        imaplib.Commands['ID'] = ('AUTH')
+        args = ("name","XXXX","contact","XXXX@163.com","version","1.0.0","vendor","myclient")
+        typ, dat = imap._simple_command('ID', '("' + '" "'.join(args) + '")')
+
+    imap.select()
+    
+    status, messages = imap.search(None, 'UNSEEN')
+    email_ids = messages[0].split()
+    
+    emails = []
+    for email_id in email_ids:
+        status, data = imap.fetch(email_id, '(RFC822)')
+        for response_part in data:
+            if isinstance(response_part, tuple):
+                msg = email.message_from_bytes(response_part[1])
+                if 'Forwarded' not in msg['Subject']:
+                    emails.append((email_id, msg))
+    imap.logout()
+    logger.info(f"Retrieved {len(emails)} new emails from {account_config['email']}")
+    return emails
+
+def forward_emails(account_config, emails, logger):
+    if account_config['proxy']['enabled']:
+        set_proxy(account_config['proxy'])
+    
+    smtp = None
+    if account_config['smtp'].get('use_ssl', False):
+        smtp = smtplib.SMTP_SSL(account_config['smtp']['server'], account_config['smtp']['port'])
+    else:
+        smtp = smtplib.SMTP(account_config['smtp']['server'], account_config['smtp']['port'])
+        if account_config['smtp'].get('use_starttls', False):
+            smtp.starttls()
+    
+    smtp.login(account_config['email'], account_config['password'])
+    
+    for email_id, original_msg in emails:
+        for recipient in account_config['forward']['to']:
+            msg = MIMEMultipart('mixed')
+            msg['From'] = account_config['email']
+            msg['To'] = recipient
+            original_subject = decode_mime_words(original_msg['Subject'])
+            msg['Subject'] = original_subject
+            
+            body = ""
+            attachments = []
+            if original_msg.is_multipart():
+                for part in original_msg.walk():
+                    content_type = part.get_content_type()
+                    content_disposition = str(part.get("Content-Disposition"))
+                    
+                    if "attachment" in content_disposition or part.get_filename():
+                        attachments.append(part)
+                    elif content_type == 'text/html':
+                        body = part.get_payload(decode=True).decode()
+                    elif content_type == 'text/plain' and not body:
+                        body = part.get_payload(decode=True).decode()
+            else:
+                body = original_msg.get_payload(decode=True).decode()
+            
+            if not body:
+                logger.error(f"Failed to extract body from email {email_id}")
+                continue
+            
+            html_content = add_mask(original_msg, body)
+            msg.attach(MIMEText(html_content, 'html'))
+
+            for attachment in attachments:
+                filename = attachment.get_filename()
+                if decode_header(filename):
+                    filename = decode_mime_words(filename)
+                attachment.add_header('Content-Disposition', 'attachment', filename=filename)
+                msg.attach(attachment)
+            
+            smtp.sendmail(account_config['email'], recipient, msg.as_string())
+            logger.info(f"Forwarded email {original_subject} to {recipient}")
+    
+    smtp.quit()
+
+def main():
+    logger = setup_logging()
+    config = load_config()
+    
+    while True:
+        for account in config['accounts']:
+            if account['enabled']:
+                try:
+                    emails = get_unforwarded_emails(account, logger)
+                    if emails:
+                        forward_emails(account, emails, logger)
+                    else:
+                        logger.info(f"No new emails to forward for {account['email']}.")
+                except Exception as e:
+                    logger.error(f"Error processing account {account['email']}: {str(e)}")
+            else:
+                logger.info(f"Account {account['email']} is disabled.")
+        
+        time.sleep(config.get('check_interval', 60))
+
+if __name__ == "__main__":
+    main()

template.html

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+<table
+    id="relay-email-header"
+    style="
+        background: #3d3d3d;
+        padding: 8px 16px;
+        margin-top: 30px;
+        margin-bottom: 30px;
+        width: 96%;
+        border-radius: 6px;
+        max-width: 1200px;
+    "
+    width="100%"
+    bgcolor="#3D3D3D"
+    align="center">
+    <tbody>
+        <tr>
+            <td
+                width="50%"
+                align="left"
+                style="
+                    font-size: xx-large;
+                    font-weight: bolder;
+                    color: #ffffff;
+                ">
+                Forwarded Email
+            </td>
+            <td width="50%" align="right" style="color: #ffffff; text-align: right;">
+                <p>From: {original_msg['From']}</p>
+                <p>To: {original_msg['To']}</p>
+                <p>Subject: {original_subject}</p>
+            </td>
+        </tr>
+    </tbody>
+</table>
+<table style="padding: 0; max-width: 850px" width="100%" align="center">
+    <tbody>
+        <tr>
+            <td style="padding-left: 15px; padding-right: 15px" width="100%">
+                <!-- content -->
+            </td>
+        </tr>
+    </tbody>
+</table>
+<table
+    style="
+        background: #3d3d3d;
+        padding: 8px 16px;
+        margin-top: 30px;
+        margin-bottom: 30px;
+        width: 96%;
+        border-radius: 6px;
+        max-width: 1200px;
+    "
+    width="100%"
+    bgcolor="#3D3D3D"
+    align="center">
+    <tbody>
+        <tr>
+            <td
+                width="50%"
+                align="left"
+                style="color: #dd2222; font-size: xx-large; font-weight: bolder">
+                FORWARDED
+            </td>
+            <td width="50%" align="right" style="color: #ffffff; text-align: left;">
+                <p style="font-size: x-large; font-weight: bold; margin-block: 0;">Notice:</p>
+                <p style="margin-block: 0.1em;">&emsp;This is a automatically forwarded email, which means it may contains something bad.</p>
+                <p style="margin-block: 0.1em;">&emsp;You shouldn't reply directly to this email, it will never reach your destination!</p>
+            </td>
+        </tr>
+    </tbody>
+</table>