# update-mailbox-settings

Enable, configure, or disable one or more of the following settings as part of a user's mailboxSettings: When updating the preferred date or time format for a user, specify it in respectively, the short date or short time format. When updating the preferred time zone for a user, specify it in the Windows or Internet Assigned Numbers Authority (IANA) time zone (also known as Olson time zone) format. You can also further customize the time zone as shown in example 2 below. 💡 TIP: Updates mailbox settings. Common use: configure Out-of-Office (automatic replies). Body example: { automaticRepliesSetting: { status: 'scheduled', scheduledStartDateTime: { dateTime: '2026-03-28T17:00:00', timeZone: 'Eastern Standard Time' }, scheduledEndDateTime: { dateTime: '2026-04-01T08:00:00', timeZone: 'Eastern Standard Time' }, internalReplyMessage: 'I am OOO.', externalReplyMessage: 'I am out of office.' } }. Status values: disabled, alwaysEnabled, scheduled.

Agent View of the PolicyLayer registry record for `update-mailbox-settings`. HTML page: https://policylayer.com/tools/jo3zik-ms-365-mcp-server/update-mailbox-settings

## Facts

- Tool: `update-mailbox-settings`
- Server: Ms 365 (`@jo3zik/ms-365-mcp-server`) — https://policylayer.com/tools/jo3zik-ms-365-mcp-server.md
- Install: `npx -y @jo3zik/ms-365-mcp-server`
- Homepage: https://www.npmjs.com/package/@jo3zik/ms-365-mcp-server
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 4 (1 required)
- Recommended policy verdict: Rate-limited

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `body` | object | yes |  |
| `confirm` | boolean | no | For destructive operations when the confirm gate is enabled (MS365_MCP_REQUIRE_CONFIRM=true; off by default). Set to true only after the user has explicitly app |
| `includeHeaders` | boolean | no | Include response headers (including ETag) in the response metadata |
| `excludeResponse` | boolean | no | Exclude the full response body and only return success or failure indication |

Parameters from the server's own tool schema.

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "update-mailbox-settings",
    "arguments": {
      "body": {}
    }
  }
}
```

## Why update-mailbox-settings is rated Medium

An AI agent can call update-mailbox-settings faster than any human can review: one bad instruction and it creates or modifies resources in Ms 365 by the hundred, each call as confident as the last.

Risk signals: Accepts raw HTML/template content (body) · High parameter count (30 properties)

## Use case

AI agents use update-mailbox-settings to create or update resources in Ms 365, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ms 365 environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Ms 365:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "update-mailbox-settings": {
      "limits": [
        {
          "counter": "update-mailbox-settings_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Ms 365 (193)

- `cancel-calendar-event` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/cancel-calendar-event.md
- `clear-excel-range` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/clear-excel-range.md
- `delete-calendar` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-calendar.md
- `delete-calendar-event` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-calendar-event.md
- `delete-contact-folder` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-contact-folder.md
- `delete-drive-item-permission` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-drive-item-permission.md
- `delete-excel-range` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-excel-range.md
- `delete-excel-table-row` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-excel-table-row.md
- `delete-focused-inbox-override` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-focused-inbox-override.md
- `delete-mail-attachment` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-mail-attachment.md
- `delete-mail-folder` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-mail-folder.md
- `delete-mail-message` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-mail-message.md
- `delete-mail-rule` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-mail-rule.md
- `delete-my-calendar-permission` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-my-calendar-permission.md
- `delete-onedrive-file` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-onedrive-file.md
- `delete-onenote-page` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-onenote-page.md
- `delete-outlook-contact` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-outlook-contact.md
- `delete-planner-bucket` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-planner-bucket.md
- `delete-planner-task-message` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-planner-task-message.md
- `delete-specific-calendar-event` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-specific-calendar-event.md
- `delete-subscription` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-subscription.md
- `delete-todo-linked-resource` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-todo-linked-resource.md
- `delete-todo-task` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-todo-task.md
- `delete-todo-task-list` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-todo-task-list.md
- `graph-batch` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/graph-batch.md
- `logout` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/logout.md
- `remove-account` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/remove-account.md
- `parse-teams-url` — Execute — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/parse-teams-url.md
- `tentatively-accept-calendar-event` — Execute — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/tentatively-accept-calendar-event.md
- `dismiss-calendar-event-reminder` — Read — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/dismiss-calendar-event-reminder.md
- …and 163 more: https://policylayer.com/tools/jo3zik-ms-365-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=jo3zik-ms-365-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/jo3zik-ms-365-mcp-server