How to install Microsoft 365 Mail in Gemini CLI

Gemini CLI was replaced by Antigravity CLI in June 2026. On an enterprise licence or paid API key you can still install Microsoft 365 Mail by running "gemini mcp add microsoft-365-mail npx -y @mindstone/mcp-server-microsoft-mail", then type /mcp to check it.

Built from the published package · server updated 6 days ago

Run the install command

In a terminal, run:

gemini mcp add microsoft-365-mail npx -y @mindstone/mcp-server-microsoft-mail

2
Check it
Inside Gemini CLI, type /mcp to list servers and tools.

MCP servers run with your permissions. If Microsoft 365 Mail needs an API key, add it under env in the config. Check its README.

Install Microsoft 365 Mail in another app

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Questions

Does Microsoft 365 Mail work in Gemini CLI?

Yes. Gemini CLI supports local and remote mcp servers, extensions (legacy), and Microsoft 365 Mail installs with the steps above.

Microsoft 365 Mail does not show up in Gemini CLI. What now?

Restart Gemini CLI fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.

Is Microsoft 365 Mail safe?

It scores 58 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.