# list_mailboxes

List all mailboxes (folders) for a Nextcloud Mail account. Returns mailbox names, IDs, and unread counts.

Agent View of the PolicyLayer registry record for `list_mailboxes`. HTML page: https://policylayer.com/tools/aiquila-nextcloud-mcp-server/list-mailboxes

## Facts

- Tool: `list_mailboxes`
- Server: AIquila — Nextcloud MCP Server (`elgorro/aiquila`) — https://policylayer.com/tools/aiquila-nextcloud-mcp-server.md
- Homepage: https://github.com/elgorro/aiquila.git
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "list_mailboxes",
    "arguments": {}
  }
}
```

## Why list_mailboxes is rated Low

This tool performs a read-only query operation on mailbox metadata. It retrieves and returns information about mail folders without creating, modifying, deleting, or executing any actions. The blast radius if misused is minimal—an AI agent could only enumerate mailbox information, which poses low risk.

From the tool's own definition: "Tool description states 'List all mailboxes' — retrieves mailbox names, IDs, and unread counts with no modification or side effects."

## Use case

AI agents call list_mailboxes to retrieve information from AIquila — Nextcloud MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches AIquila — Nextcloud MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_mailboxes": {}
  }
}
```

## Other tools on AIquila — Nextcloud MCP Server (294)

- `bulk_file_operations` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/bulk-file-operations.md
- `circles_delete` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/circles-delete.md
- `circles_remove_member` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/circles-remove-member.md
- `clear_out_of_office` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/clear-out-of-office.md
- `clear_user_status_message` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/clear-user-status-message.md
- `delete` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete.md
- `delete_all_form_submissions` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-all-form-submissions.md
- `delete_all_notifications` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-all-notifications.md
- `delete_announcement` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-announcement.md
- `delete_bookmark` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-bookmark.md
- `delete_bookmark_folder` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-bookmark-folder.md
- `delete_bookmark_tag` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-bookmark-tag.md
- `delete_contact` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-contact.md
- `delete_coworker` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-coworker.md
- `delete_event` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-event.md
- `delete_feed` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-feed.md
- `delete_form` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-form.md
- `delete_form_option` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-form-option.md
- `delete_form_question` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-form-question.md
- `delete_form_share` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-form-share.md
- `delete_form_submission` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-form-submission.md
- `delete_map` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-map.md
- `delete_map_device` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-map-device.md
- `delete_map_favorite` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-map-favorite.md
- `delete_news_folder` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-news-folder.md
- `delete_note` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-note.md
- `delete_poll` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-poll.md
- `delete_poll_comment` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-poll-comment.md
- `delete_poll_option` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-poll-option.md
- `delete_poll_share` — Destructive — https://policylayer.com/tools/aiquila-nextcloud-mcp-server/delete-poll-share.md
- …and 264 more: https://policylayer.com/tools/aiquila-nextcloud-mcp-server.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=aiquila-nextcloud-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/aiquila-nextcloud-mcp-server