How to Connect ChatGPT to Your Email on Mac

Let ChatGPT read, search, send and reply to email through Mail.app on your Mac. Works with Gmail, Outlook, iCloud and any IMAP account — via a free MCP connector. No API keys, your email never leaves your machine.

L
LMCP··5 min read
Download for Mac — freeInstallation guide →

Yes — ChatGPT can read and send your email on a Mac by installing LMCP and adding it as a custom connector. LMCP is a free, local MCP server that talks to Mail.app through native macOS APIs, so any account configured there (iCloud, Gmail, Outlook, Exchange, IMAP) works. ChatGPT can then summarise your inbox, search across accounts, draft replies and file messages. Custom connectors need a paid ChatGPT plan; LMCP itself is free and needs no API keys.

Can ChatGPT Read My Email?

With LMCP, yes — ChatGPT can read, search, send and reply to your email directly through Mail.app on your Mac. Ask in plain English: “What did Sarah say about the budget?” or “Reply to the latest email from the landlord and say I’ll pay Friday.” ChatGPT calls the right tool on your Mac and works with your real inbox.

No Gmail API keys, no OAuth into your mail provider. LMCP talks to Mail.app locally, so every account you already have set up there is available — and your email never leaves your machine.

What You Will Need

  • macOS 12+ with Mail.app configured (at least one account)
  • ChatGPT on the web (Plus/Pro/Business/Enterprise/Edu) — custom connectors require a paid plan and Developer mode
  • LMCP installed (free)

Connect ChatGPT to Your Mac

Connect ChatGPT to your Mac

chatgpt.com → Settings → Security and login → Developer mode

Adding a custom connector needs Developer mode, available on ChatGPT Plus, Pro, Business, Enterprise, and Edu (not the free plan). ChatGPT flags it high-risk because a custom connector can act on your data.

  1. 1

    Install LMCP on your Mac

    Download LMCP from local-mcp.com and run the installer — it installs Local MCP to Applications and auto-configures your AI clients in ~30 seconds.

  2. 2

    Turn on web access and copy your Connection URL

    Click the LMCP icon in your menu bar and find Your web AI · Cloud Relay. Turn web access ON (it is off by default for privacy), then open your assistant’s panel and click Copy URL.
    That URL already contains your personal token — it looks like . Every step below that says “the URL you copied” means this one. Treat it like a password: anyone holding it can reach your Mac, and you can rotate it any time from the LMCP menu, which invalidates the old one.

  3. 3

    Turn on Developer mode (one-time)

    Use a desktop browser at chatgpt.com — connectors can’t be added from the mobile or desktop apps. Open Settings → “Security and login” and turn on Developer mode: it’s the one-time prerequisite, and the custom-connector section (labeled “Connectors”, “Apps” or “Apps & Connectors” depending on rollout) only appears after it’s on — that’s why there may be no “Apps” yet.
    Still don’t see it? Fully reload chatgpt.com after toggling — Developer mode also has to stay on to use the connector. On Business/Enterprise/Edu a workspace admin must enable connectors first.

  4. 4

    Create the LMCP connector

    With Developer mode on, go to chatgpt.com/plugins and click the ＋ at the top right — that is where the button lives, not on the Settings page (Settings → Plugins → “Browse plugins” takes you to the same screen). Fill in Name: and, in Server URL, paste the URL you copied from the LMCP menu bar — the tokenized one, exactly as copied. Authentication stays on “OAuth” — that is already the default, and the client ID/secret stay empty because we auto-register. Tick I understand and want to continue and click Create.

    ChatGPT New Plugin dialog with Name LMCP, the server URL, and Authentication set to OAuth
  5. 5

    Sign in and approve on your Mac

    Create only registers the connector — it still reads “No app actions available yet”. Click Sign in with LMCP: ChatGPT opens an Authorize page on , and a dialog appears on your Mac. Click Approve there and the tool catalog loads.
    If no dialog shows up, or the page says LMCP isn’t running, the approval simply expired — it only lasts 5 minutes. Click the button again; nothing needs reinstalling. (Pasting your token is the fallback for a different device or a browser that blocks the app-open.)

    ChatGPT showing “Add LMCP to ChatGPT” with the Sign in with LMCP button — the step people miss
  6. 6

    Enable it in a chat

    Start a new conversation and enable the LMCP connector from the composer’s tools menu (+). Then ask: “List my email accounts” or “What meetings do I have today?”

    ChatGPT answering with the Mac’s real date, time and timezone, citing LMCP as the source

Steps verified 2026-08-08. 100% local · you confirm anything it sends · free.

More detail: the full ChatGPT guide.

Try It Out

Start a new chat, enable LMCP via + → More → LMCP, then ask:

Prompt — paste into your AI

Summarize my unread emails and flag the urgent ones.

Prompt — paste into your AI

Find emails from John about the contract.

Searches sender, subject and content across all mailboxes.

Prompt — paste into your AI

Reply to Sarah’s latest email saying I’ll be there at 3pm.

Drafts and sends from your account.

Prompt — paste into your AI

Move all newsletters from this week to the Archive folder.

For sending and moving, ChatGPT shows a preview and asks you to confirm before anything happens.

Which Email Providers Work?

Any account configured in Mail.app — if you can see it in Mail.app, ChatGPT can use it:

  • Gmail — personal and Google Workspace
  • Outlook.com / Hotmail and Microsoft Exchange / Office 365
  • iCloud Mail
  • Any IMAP provider — Fastmail, Yahoo, custom domains

Privacy: Email Stays on Your Mac

  • LMCP runs locally and talks to Mail.app through native macOS APIs.
  • With Cloud Data Forwarding on, requests route through an encrypted relay to your Mac and execute there — no intermediate mail servers, no API keys.
  • LMCP does not store, cache or log email content. GDPR/CCPA compliant by architecture.

Troubleshooting

ChatGPT does not show any emails

Confirm Mail.app has the account configured, and that LMCP has Automation access to Mail in System Settings > Privacy & Security > Automation. Also make sure Cloud Data Forwarding is ON.

The connector shows “No app actions available yet”

Normal — that panel doesn’t list tools. Enable LMCP in a chat via + → More → LMCP and it works.

Ready-Made Recipes

Copy-paste workflows that use the Mail tools on this page:

Related Guides

Ready to try it?

Works with Claude, Cursor, VS Code, ChatGPT and any MCP client

Download for Mac
FreemacOS 12+ · Apple Silicon & Intel

✦ llms.txt

Comments

Questions and experiences welcome — comments are reviewed before they appear.

More guides

📄How to Connect ChatGPT to Your Mac (Mail,

Use ChatGPT (web or mobile) with your Mac apps via the encrypted Cloud

📄Connect ChatGPT to Your Mac Calendar

Let ChatGPT read and create events on your Mac calendar through the Cl

📄How to Connect Claude.ai Web to Your Mac (

Give Claude.ai web direct access to Mail, Calendar, Teams, OneDrive on

← Back to LMCP home·All guides