emailrules_move_down · M365 MCP: Risk & Policy

WHAT IT DOES

What emailrules_move_down does on M365

AI agents use emailrules_move_down 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_down needs a policy

Moving an email rule down in priority list is a reversible modification operation that changes email processing behavior. While it affects system configuration, it is not destructive (rules remain intact), not financial, and not code execution. This qualifies as Write.

From the tool's definition Tool name 'emailrules_move_down' indicates modification of email rules ordering; sibling tools like 'emailrules_*' suggest this server manages email rule configuration. The 'move_down' action modifies the sequence/state of rules reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

emailrules_move_down Rate-limited

emailrules_move_down 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_down": {
      "limits": [
        {
          "counter": "emailrules_move_down_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_down

What does the emailrules_move_down tool do? +

emailrules_move_down. 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_down? +

Register the M365 MCP server in PolicyLayer and add a rule for emailrules_move_down: 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_down? +

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

Can I rate-limit emailrules_move_down? +

Yes. Add a rate_limit block to the emailrules_move_down 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_down completely? +

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

emailrules_move_down 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.