The MCP Email Server is a Model Context Protocol (MCP) server that provides email functionality for LLM-driven workflows. It enables LLMs to compose and dispatch emails to multiple recipients, with optional attachments, and to search for matching attachments within configured directories. The server transmits messages securely via SMTP and supports common providers through an email.json configuration that maps domains to SMTP servers and ports (e.g., Gmail, Outlook, Yahoo). It exposes two tools: send_email (requires receiver, body, subject, and optional attachments) and search_attachments (requires a pattern to locate files). Run the server with the command: python -m mcp_email_server --dir /path/to/attachment/directory. For Claude.app integration, guidance is provided to configure via Conda or UV, setting environment variables SENDER and PASSWORD. Attachments are restricted to a security-conscious set of file types (documents, archives, text, images, and md). Example usage demonstrates JSON payloads for sending emails and searching attachments. Dependencies include pip install pydantic and python-dotenv. The server supports secure transmission and provides a practical means to upload attachments along with email content within MCP-enabled apps.