emailfolders_move · M365 MCP: Risk & Policy

WHAT IT DOES

What emailfolders_move does on M365

AI agents use emailfolders_move 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 emailfolders_move needs a policy

Moving email folders is a write operation that modifies data organization in Outlook. It's reversible (folders can be moved back) so not destructive. The high severity reflects that an agent could reorganize or hide important emails, disrupting user access and workflows. Empty description prevents higher confidence assessment, though the action itself is clearly a modification operation based on the tool name.

From the tool's definition Tool name is 'emailfolders_move' which moves email folders in Microsoft 365 Outlook. The 'move' operation modifies folder locations/organization, a reversible write operation. Description is empty, reducing confidence slightly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

emailfolders_move Rate-limited

emailfolders_move 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": {
    "emailfolders_move": {
      "limits": [
        {
          "counter": "emailfolders_move_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 emailfolders_move

What does the emailfolders_move tool do? +

emailfolders_move. 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 emailfolders_move? +

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

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

Can I rate-limit emailfolders_move? +

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

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

emailfolders_move 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.