emailrules_move_top · M365 MCP: Risk & Policy

WHAT IT DOES

What emailrules_move_top does on M365

AI agents use emailrules_move_top to create or update resources in M365 — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your M365 environment.

WHY IT NEEDS A POLICY

Why emailrules_move_top needs a policy

Email rules control mail filtering and routing behavior. Moving rules changes their execution priority, which can affect which emails are processed and how—a reversible modification of data/configuration. This is Write rather than Execute because it modifies rule state rather than triggering email actions.

From the tool's definition Tool name 'emailrules_move_top' suggests modifying email rule priorities or moving rules to top position. No description provided, but context within m365-mcp server indicates email management capability.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

emailrules_move_top Rate-limited

emailrules_move_top stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "emailrules_move_top": {
      "limits": [
        {
          "counter": "emailrules_move_top_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches M365, so you can run agents against it safely.

FAQ

Questions about emailrules_move_top

What does the emailrules_move_top tool do? +

emailrules_move_top. It is categorised as a Write tool in the M365 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on emailrules_move_top? +

Register the M365 MCP server in PolicyLayer and add a rule for emailrules_move_top: 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 M365. Nothing to install.

What risk level is emailrules_move_top? +

emailrules_move_top is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit emailrules_move_top? +

Yes. Add a rate_limit block to the emailrules_move_top 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 emailrules_move_top completely? +

Set action: deny in the PolicyLayer policy for emailrules_move_top. 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 emailrules_move_top? +

emailrules_move_top is provided by the M365 MCP server (robin-collins/m365-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.