# Connect your mailboxes and calendars to Gemini CLI

[Connectors](https://lumman.co/mcp)

Install Multi Mail and Multi Calendar in Gemini CLI as extensions, one command each, then approve each on the Lumman page your browser opens.

## The AI apps' own connectors

- The [Google Workspace extension for Gemini CLI](https://gemini-cli-extensions.github.io/workspace/) searches, reads, drafts, sends and labels Gmail, lists, creates, updates and answers Calendar events and finds free time. Read on 13 November 2026.

## Connect it

### [Multi Mail](https://lumman.co/mcp/multi-mail)

Gmail, Outlook.com, Hotmail, Microsoft 365, Yahoo, iCloud and other mailboxes, in one connector.

1. Run in a terminal and confirm the install: `gemini extensions install https://github.com/lumman-lab/multi-mail`
2. Sign in, add your mailbox and approve Gemini CLI on the Lumman page your browser opens when Gemini CLI next starts. If none opens, run /mcp auth multi-mail.

### [Multi Calendar](https://lumman.co/mcp/multi-calendar)

Your Outlook.com, Microsoft 365, Google, iCloud and other calendars, in one connector.

1. Run in a terminal and confirm the install: `gemini extensions install https://github.com/lumman-lab/multi-calendar`
2. Sign in, add your calendar and approve Gemini CLI on the Lumman page your browser opens when Gemini CLI next starts. If none opens, run /mcp auth multi-calendar.

## Reach and limits

- Search and read every mailbox you add at once, and draft, reply, forward and send from any of them.
- Archive, bin and file mail, and clean up an inbox by sender, putting back what a clean-up moved.
- Find free time across every calendar you add, and create, move and cancel events.
- Share booking links and a booking page, run group polls, and find a time with the people in a circle.

## If it refuses

- [Gemini CLI's site](https://geminicli.com/) says Antigravity CLI replaced it for unpaid-tier and Google One users on 18 June 2026. Read on 13 November 2026.
- [Gemini CLI's Enterprise Admin Controls page](https://geminicli.com/docs/admin/enterprise-controls/) says MCP servers and extensions stay off for enterprise users until an admin enables them, and an admin's allowlist ignores every other server. Read on 13 November 2026.