create_email_draft · Microsoft MCP: Risk & Policy

WHAT IT DOES

What create_email_draft does on Microsoft MCP

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

WHY IT NEEDS A POLICY

Why create_email_draft needs a policy

This tool creates or modifies data (email draft) reversibly—the draft can be edited, discarded, or deleted without sending. It does not execute external code, trigger destructive irreversible deletions, move money, or permanently alter state.

From the tool's definition Tool name 'create_email_draft' and description 'Create an email draft with file path(s) as attachments' indicate creation of a new email message object with optional file attachments.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_email_draft Rate-limited

create_email_draft 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": {
    "create_email_draft": {
      "limits": [
        {
          "counter": "create_email_draft_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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

FAQ

Questions about create_email_draft

What does the create_email_draft tool do? +

Create an email draft with file path(s) as attachments. It is categorised as a Write tool in the Microsoft MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_email_draft? +

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

What risk level is create_email_draft? +

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

Can I rate-limit create_email_draft? +

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

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

create_email_draft is provided by the Microsoft MCP server (purva-kashyap/microsoft-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.