dead-letter is a Model Context Protocol (MCP) server: Convert .eml email exports to Markdown with YAML front matter. Because it speaks the Model Context Protocol, AI assistants can use dead-letter as a set of callable tools instead of you copy-pasting between apps.
It runs locally: the Python package dead-letter (via uvx) speaks MCP over stdio on your machine. No credentials are required — it works out of the box. The current release is v0.2.5, with source at BigCactusLabs/dead-letter on GitHub.
On mcp.site, dead-letter sits in the Communication category. Any MCP client can use it — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed among them — via the install snippets below. If you maintain dead-letter for BigCactusLabs, claim this listing to verify ownership, earn the Verified badge, and keep the details current.