mcp-outlook

A small MCP server for personal Outlook/Hotmail/Live accounts, using the Microsoft Graph API directly. The official Outlook MCP server only supports work/school (Azure AD) accounts, this one is for everyone else.

Tools: list_emails, search_emails, read_email, delete_email (requires explicit confirmation).

1. Register an Azure app (one-time setup)

1. Go to https://portal.azure.com → Azure Active Directory → App registrations → New registration.

2. Name it anything, e.g. "Personal Outlook MCP".

3. Under "Supported account types", choose "Personal Microsoft accounts only".

4. Leave "Redirect URI" blank.

5. After creation, copy the Application (client) ID from the app overview page.

6. Go to Authentication → scroll to "Advanced settings" → set "Allow public client flows" to Yes, then save.

7. Go to API permissions → Add a permission → Microsoft Graph → Delegated permissions → add Mail.Read, Mail.ReadWrite, offline_access.

Related MCP server: simple-email-mcp

2. Configure

npm install
cp config.example.json config.json

Edit config.json and paste in your client ID:

{ "clientId": "your-client-id-here" }

3. Run

npm start

On first run, the terminal prints a code and a URL (https://microsoft.com/devicelogin). Open the URL on any device, enter the code, and sign in with your personal Microsoft account. A token-cache.json file is created afterward so you won't need to log in again until the refresh token expires.

4. Connect it to an MCP client

Point your MCP client (e.g. Claude Desktop) at this server by adding it to its config, using the full path to src/index.js:

{
  "mcpServers": {
    "outlook": {
      "command": "node",
      "args": ["C:/xampp/htdocs/mcp-outlook-js/src/index.js"]
    }
  }
}

Notes

• config.json and token-cache.json hold secrets and are gitignored, never commit them.

• delete_email moves the message to Deleted Items (like a normal Outlook delete), and only runs if called with confirm: true.