get-mailbox-settings

SERVERMs 365 SOURCE@jo3zik/ms-365-mcp-server

Low RISK CLASS

Category Read

Parameters 50 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/jo3zik-ms-365-mcp-server/get-mailbox-settings.md

WHAT IT DOES

What get-mailbox-settings does on Ms 365

AI agents call get-mailbox-settings to retrieve information from Ms 365 without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`expand`	array	—	Navigation properties to inline, e.g. attachments on a message or event. Only navigation properties can be expanded: expanding a non-navigation property such as
`select`	string	—	Comma-separated fields to return, e.g. id,subject,from,receivedDateTime
`fetchAllPages`	boolean	—	Follow @odata.nextLink and merge up to 100 pages into one response. Can return enormous payloads—only when the user explicitly needs a full export. Prefer a sma
`includeHeaders`	boolean	—	Include response headers (including ETag) in the response metadata
`excludeResponse`	boolean	—	Exclude the full response body and only return success or failure indication

Parameters from the server's own tool schema.

RISK

Why get-mailbox-settings is rated Low

Even though get-mailbox-settings only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get-mailbox-settings safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Ms 365, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get-mailbox-settings, this is the rule to start with:

get-mailbox-settings Allowed

get-mailbox-settings is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get-mailbox-settings": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Ms 365, apply this rule, and every get-mailbox-settings call is checked against it from then on.

FAQ

Questions about get-mailbox-settings

What does the get-mailbox-settings tool do? +

Get the user's mailboxSettings. You can view all mailbox settings, or get specific settings. Users can set the following settings for their mailboxes through an Outlook client: Users can set their preferred date and time formats using Outlook on the web. Users can choose one of the supported short date or short time formats. This GET operation returns the format the user has chosen. Users can set the time zone they prefer on any Outlook client, by choosing from the supported time zones that their administrator has set up for their mailbox server. The administrator can set up time zones in the Windows time zone format or Internet Assigned Numbers Authority (IANA) time zone (also known as Olson time zone) format. The Windows format is the default. This GET operation returns the user's preferred time zone in the format that the administrator has set up. If you want that time zone to be in a specific format (Windows or IANA), you can first update the preferred time zone in that format as a mailbox setting. Subsequently you will be able to get the time zone in that format. Alternatively, you can manage the format conversion separately in your app. 💡 TIP: Gets the current user's mailbox settings including automaticRepliesSetting (out-of-office status, message, scheduledStartDateTime/EndDateTime, externalAudience), language, timeZone, dateFormat, timeFormat, delegateMeetingMessageDeliveryOptions, and userPurpose. It is categorised as a Read tool in the Ms 365 MCP Server, which means it retrieves data without modifying state.

What parameters does get-mailbox-settings accept? +

get-mailbox-settings accepts 5 parameters: expand, select, fetchAllPages, includeHeaders, excludeResponse. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on get-mailbox-settings? +

Register the Ms 365 MCP server in PolicyLayer and add a rule for get-mailbox-settings: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Ms 365. Nothing to install.

What risk level is get-mailbox-settings? +

get-mailbox-settings is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get-mailbox-settings? +

Yes. Add a rate_limit block to the get-mailbox-settings rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block get-mailbox-settings completely? +

Set action: deny in the PolicyLayer policy for get-mailbox-settings. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides get-mailbox-settings? +

get-mailbox-settings is provided by the Ms 365 MCP server (@jo3zik/ms-365-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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