fastmail-mcp and email-mcp
These two projects are competitors, as both aim to provide an Email MCP server, with the first being a full IMAP/SMTP server and the second being a specific integration with the Fastmail API.
About fastmail-mcp
MadLlama25/fastmail-mcp
A Model Context Protocol (MCP) server that provides access to the Fastmail API, enabling AI assistants to interact with email, contacts, and calendar data. Includes a DXT (desktop extension) for Claude Desktop.
Implements 38 tools covering comprehensive email operations (threading, attachments, bulk actions), contacts, and calendar management via Fastmail's JMAP API. Built with Node.js using stdio transport for seamless MCP integration, supporting both standalone server and Claude Desktop DXT installation with encrypted token storage. Distinguishes between folder-style moves and label-based operations, enabling fine-grained mailbox management alongside advanced search filtering by sender, date, read status, and attachment presence.
About email-mcp
codefuturist/email-mcp
Email MCP server with full IMAP + SMTP support — read, search, send, manage, and organize email from any AI assistant via the Model Context Protocol
Exposes 47 tools across 7 prompts and 6 resources, including real-time IMAP IDLE watchers with AI-powered triage, email scheduling, calendar extraction, and provider-aware label management. Built with layered service architecture decoupled from MCP wiring for testability, uses stdio transport with XDG-compliant TOML config, and auto-detects settings for 8+ providers (Gmail, Outlook, Yahoo, iCloud, Fastmail, ProtonMail, Zoho, GMX). Supports multi-account workflows with OAuth2 (experimental), token-bucket rate limiting, TLS/STARTTLS encryption, and 5 MB attachment caps; installable via npm/Docker or integrated directly into Claude Desktop, VS Code, Cursor, Windsurf, and Zed.
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