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mcp/harbor
Gemini CLI

Microsoft 365 Mail for Gemini CLI

io.github.mindstone/mcp-server-microsoft-mail

Microsoft 365 Outlook mail via Graph: read, search, send, reply, forward, draft, move, delete.

client:Gemini CLI transport:stdio runtime:npm

Install Microsoft 365 Mail in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "mcp-server-microsoft-mail": {
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-microsoft-mail"
      ],
      "env": {
        "MS_CLIENT_ID": "<MS_CLIENT_ID>",
        "MS_CONFIG_DIR": "<MS_CONFIG_DIR>",
        "MS_ACCOUNT_EMAIL": "<MS_ACCOUNT_EMAIL>",
        "MS_MCP_PACKAGE_ID": "<MS_MCP_PACKAGE_ID>",
        "MICROSOFT_REQUEST_TIMEOUT_MS": "<MICROSOFT_REQUEST_TIMEOUT_MS>",
        "MCP_WORKSPACE_PATH": "<MCP_WORKSPACE_PATH>"
      }
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

Microsoft 365 Mail in other clients

Microsoft 365 Mail MCP server