fastmail-mcp and better-email-mcp
These are competitors offering different architectural approaches to email access via MCP: one provides proprietary API integration (Fastmail) while the other offers open-protocol support (IMAP/SMTP), so users would select based on their email provider and preference for managed versus standard protocols.
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 better-email-mcp
n24q02m/better-email-mcp
MCP server for Email (IMAP/SMTP) - composite tools optimized for AI agents
Provides 5 composite tools spanning search, read, send, reply, and organization across 6+ email providers with automatic IMAP/SMTP discovery and no OAuth2 setup required. Built as an MCP server with token-optimized descriptions, on-demand help resources, and thread-aware headers (In-Reply-To/References) for conversation continuity. Supports multi-account management via app passwords or environment variables, with encrypted credential storage and integration into Claude, Gemini, and Codex AI frameworks.
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