Apple Mail MCP

✉️ apple-mail-mcp

Your Apple Mail, fully agent-operable.

Runs locally on your Mac. It opens the Mail store read-only, returns only what a client asks for, and sends only when the client explicitly calls the send tool. No third-party relay, no cloud copy of your mail.

uvx apple-mailbox-mcp setup

Measured on a 300k-message store: addressing one message 0.1 ms via Mail's own index, against 7 to 10 s for the AppleScript whose-clause; full-text search p95 under 1 ms. Method and script: docs/benchmarks.md.

Use Claude Code, Claude Desktop, Codex, Cursor, VS Code, or any local MCP client to search, read, triage, and send email through Apple Mail — your mailbox becomes something you can ask, search and delegate to — find anything in seconds, file hundreds of messages through a reviewed plan, send polished mail as the right identity, and let Exchange deliver scheduled messages even while your Mac is asleep.

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✨ What you can do

🔍 Ask your mailbox questions. *"What did Maria send me about the memo last week?"* Search runs at database speed — sender, mailbox, dates, unread, attachments — and reconstructs whole conversations.

🕳️ Find what Mail itself can't. Mail's built-in search only skims the first line of most messages. apple-mail-mcp indexes every message body on your Mac — and for Exchange accounts it even fetches the bodies Mail never downloaded, straight from your own mailbox on the server. Queries that returned nothing return twenty.

🎭 Send as the right you. Work mail through the work lane, personal through Gmail — one parameter picks the identity. Every message is composed from scratch as clean, standards-correct email that renders everywhere, *including Outlook* (the AppleScript compose path that arrives blank in Outlook is the reason this project exists).

⏰ Schedule like "Send Later", but scriptable. A scheduled message is frozen in full — attachments, identity, exact text, and since 1.8.2 the threading headers, so a scheduled reply lands in the conversation it answers. Exchange can execute it server-side at the requested time, lid closed; other providers use a local background sender and deliver on its next pass (or just after the Mac wakes).

🗂️ Triage at scale, without fear. *"File these 40 newsletters"* becomes a reviewable plan: nothing moves until it is approved, every message is re-checked before it is touched, and the result is verified against Mail's own records afterward. Delete means Mail's Trash — nothing is ever erased.

📝 Draft where your drafts live. Compose into your real Exchange Drafts folder, ready to open in Outlook or OWA — created, never auto-sent.

⚡ Why it's different

Every other Apple-Mail MCP drives AppleScript for both finding and acting. This one doesn't — and it shows:

Every number above was measured on a live ~300,000-message store; the script and full method are in docs/benchmarks.md.

If the benchmarks hold up on your mailbox, a ⭐ helps others find this.

🛡️ Built to be trusted

• ✅ Plan → review → apply → verify. Bulk actions are frozen into a plan you can read before anything happens; the outcome is confirmed against Mail's own store afterward — never assumed.
• 🗑️ Nothing is ever erased. "Delete" files into Mail's Trash, and destructive plans have their own separate, capped door.
• 👓 Read-only mail mode. Set EMAIL_MCP_READ_ONLY=1 and only the 11 non-mutating mail tools exist in the session. Search may still maintain its local body index, and attachment retrieval writes the requested file to the configured temporary directory.
• 💾 A crash-safe scheduled queue. Manifest updates are flushed and atomically replaced, so an interrupted rewrite keeps the last valid record. If a file is damaged independently, diagnostics name it instead of claiming the queue is empty, while healthy scheduled messages keep moving.
• 🧾 A local, best-effort activity ledger. Sends, schedules, cancellations and triage runs are recorded without making an unwritable log block mail. For reconciliation, the message itself, its Message-ID and its scheduled record remain authoritative.
• 🔒 No third-party mail relay. Mail content stays local except for mail you send and optional access to your own provider for Exchange/IMAP body backfill, drafts and server-side scheduling. SMTP passwords stay in the macOS Keychain or 1Password; Microsoft OAuth tokens live in a private 0600 cache under ~/.email-mcp/graph/.
• 📜 A written contract. Since v1.0 every tool's shapes, error codes and caps evolve additively, held in place by 800+ automated tests.
• 🤝 Clear to every MCP client. All 21 tools identify what they do, explain every input, and declare whether they read, change or can remove data. Newer clients receive structured results; older clients keep the same JSON text. MCP SDK 2.2 and newer 2.x releases are tested, with support for older clients.
• 🧱 Built to evolve without breaking your workflow. Email rules are isolated from MCP, Mail.app, Exchange, delivery, and local storage. Provider or SDK changes stay at the edge while the 21-tool contract remains stable. The dependency rules are enforced in CI and explained in the architecture guide.
• 📦 Releases you can verify. Every tagged release is built and installed in a clean environment before publishing. GitHub includes the wheel, source archive, SHA-256 checksums and signed build provenance—not just source code.
• 🩺 Self-diagnosing. apple-mail-mcp status gives one readable readiness, scheduling and recovery screen. apple-mail-mcp doctor provides the complete diagnostic detail and an exact fix for anything red.

🚀 Quick start

1. Grant Full Disk Access to your terminal app (System Settings → Privacy & Security → Full Disk Access), then quit and reopen the terminal. This is Apple's one manual toggle — there is no pop-up for it.

1. Install and set up:

   uvx apple-mailbox-mcp setup     # or: pipx install apple-mailbox-mcp

or via Homebrew:

brew install parasxos/tap/apple-mail-mcp && apple-mail-mcp setup

1. Register with your client — one line for Claude Code:

   claude mcp add --transport stdio --scope user apple-mail -- uvx apple-mailbox-mcp

or the same JSON block for Claude Desktop / Cursor / VS Code (claude_desktop_config.json / .cursor/mcp.json / .vscode/mcp.json):

   {

"mcpServers": { "apple-mail": { "command": "uvx", "args": ["apple-mailbox-mcp"] } } }

1. Verify: uvx apple-mailbox-mcp status prints one readiness screen — or just ask your client to run the doctor tool; every red line comes with its exact fix. uvx apple-mailbox-mcp --version prints the installed version (apple-mailbox-mcp, apple-mail-mcp and email-mcp are three names for the same command). The first body-index build on a large mailbox runs in the background and can take a few minutes; search works immediately and completes as the index fills.

Before running setup, grant your terminal app Full Disk Access (System Settings → Privacy & Security → Full Disk Access) — that is how reading stays fast and local. There is no pop-up for this one; it is Apple's one manual toggle, and setup walks you to the exact pane if it finds it missing.

setup asks everything in plain words (bare Enter accepts the recommended answer), offers a sending identity, builds the body-search index, verifies the nightly refresh actually runs, and ends by printing the one block you paste into your MCP client:

{

"mcpServers": { "apple-mail": { "command": "apple-mail-mcp" } } }

Setup ends with a clear ready verdict or numbered recovery steps. Grant Automation → Mail when triage first asks for it. Check the installation, the next scheduled message, and failed scheduled sends anytime with apple-mail-mcp status; use apple-mail-mcp doctor for the full technical detail.

💡 *New to the terminal?* Three things that look wrong and aren't:

brew install pipx wants a typed y (Enter alone is rejected);

pipx ensurepath may print a ⚠️ — the "pipx is ready to go!" line after it

is the verdict; and after ensurepath, close and reopen the terminal once

so apple-mail-mcp is found.

🔌 Works with

Every client below speaks stdio MCP; the command is always uvx apple-mailbox-mcp.

Claude Code

claude mcp add --transport stdio --scope user apple-mail -- uvx apple-mailbox-mcp

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{ "mcpServers": { "apple-mail": { "command": "uvx", "args": ["apple-mailbox-mcp"] } } }

Cursor

Add the same block to ~/.cursor/mcp.json (or per-project .cursor/mcp.json).

VS Code (Copilot MCP)

Add the same block under "servers" in .vscode/mcp.json.

Codex CLI

# ~/.codex/config.toml

[mcp_servers.apple-mail] command = "uvx" args = ["apple-mailbox-mcp"]

Any stdio MCP client

Point it at uvx apple-mailbox-mcp. The wire contract is additive-only since v1.0.

🔧 Troubleshooting

🧰 The 21 tools

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