MCP Email Server for Claude Integration

Overview

The MCP Email Server is a Model Context Protocol server designed to provide email functionality. It enables Large Language Models (LLMs) to compose and send emails, as well as search for attachments within specified directories.

Features

• Send emails with multiple recipients
• Support for email attachments
• Search for files in directories based on pattern matching
• Secure email transmission using SMTP

Available Tools

send_email

Sends emails based on the provided subject, body, and receiver.

• receiver (array of strings, required): List of recipient email addresses
• body (string, required): The main content of the email
• subject (string, required): The subject line of the email
• attachments (array of strings or string, optional): Email attachments (filenames)

search_attachments

Searches for files in a specified directory that match a given pattern.

• pattern (string, required): The text pattern to search for in file names

Prompts

send_email

Send an email with optional attachments.

• Arguments:
• receiver (required): The list of recipient email addresses
• body (required): The main content of the email
• subject (required): The subject line of the email
• attachments (optional): Email attachments

search_attachments

Search for files matching a pattern.

• Arguments:
• pattern (required): The text pattern to search for in file names

Installation

Using pip

Install the required dependencies:

pip install pydantic python-dotenv

Email Configuration

An email.json file with SMTP server configurations:

[
  {
    "domain": "@gmail.com",
    "server": "smtp.gmail.com",
    "port": 587
  },
  {
    "domain": "@outlook.com",
    "server": "smtp.office365.com",
    "port": 587
  },
  {
    "domain": "@yahoo.com",
    "server": "smtp.mail.yahoo.com",
    "port": 587
  }
]

Usage

Running the Server

Start the MCP Email Server with:

python -m mcp_email_server (--dir /path/to/attachment/directory)

Configure for Claude.app

Add to your Claude settings:

Conda

{
  "mcpServers": {
    "email": {
      "command": "D:\\conda\\envs\\mcp\\python.exe",
      "args": [
        "C:\\Users\\YourUserName\\Desktop\\servers\\src\\email\\src\\mcp_server_email",
        "--dir",
        "C:\\Users\\YourUserName\\Desktop"
      ],
      "env": {
        "SENDER": "[email protected]",
        "PASSWORD": "tuogk......."
      }
    }
  }
}

UV

{
  "mcpServers": {
    "email": {
      "command": "uv",
      "args": [
        "~\\servers\\src\\email\\src\\mcp_server_email",
        "--dir",
        "C:\\Users\\YourUserName\\Desktop"
      ],
      "env": {
        "SENDER": "[email protected]",
        "PASSWORD": "tuogk......."
      }
    }
  }
}

Security Notes

• For Gmail and other services, you may need to use an app-specific password
• The server supports a limited set of attachment file types for security reasons

Supported File Types

The server supports the following attachment file types:
- Documents: doc, docx, xls, xlsx, ppt, pptx, pdf
- Archives: zip, rar, 7z, tar, gz
- Text files: txt, log, csv, json, xml
- Images: jpg, jpeg, png, gif, bmp
- Other: md

Example Usage

Sending an Email

{
  "receiver": ["[email protected]"],
  "subject": "Test Email from MCP Server",
  "body": "This is a test email sent via the MCP Email Server.",
  "attachments": ["document.pdf", "image.jpg"]
}

Searching for Attachments

{
  "pattern": "report"
}

Contributing

We encourage contributions to help expand and improve the MCP Email Server. Whether you want to add new tools, enhance existing functionality, or improve documentation, your input is valuable.

For examples of other MCP servers and implementation patterns, see: https://github.com/modelcontextprotocol/servers

Pull requests are welcome! Feel free to contribute new ideas, bug fixes, or enhancements to make the MCP Email Server even more powerful and useful.

License

MCP Email Server is licensed under the MIT License. This means you are free to use, modify, and distribute the software, subject to the terms and conditions of the MIT License.

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