mittwald_mail_address_update · Mittwald MCP Server MCP

WHAT IT DOES

What mittwald_mail_address_update does on Mittwald MCP Server

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

WHY IT NEEDS A POLICY

Why mittwald_mail_address_update needs a policy

This tool modifies email address settings within a Mittwald hosting account, which is a reversible write operation. The severity is high because unauthorized email address updates could enable account takeover, credential interception, or service disruption by redirecting mail for billing, security notifications, or user communications.

From the tool's definition Tool name 'mittwald_mail_address_update' and description 'Update a mail address' indicates modification of existing email configuration data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mittwald_mail_address_update Rate-limited

mittwald_mail_address_update 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": {
    "mittwald_mail_address_update": {
      "limits": [
        {
          "counter": "mittwald_mail_address_update_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 Mittwald MCP Server, so you can run agents against it safely.

FAQ

Questions about mittwald_mail_address_update

What does the mittwald_mail_address_update tool do? +

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

How do I enforce a policy on mittwald_mail_address_update? +

Register the Mittwald MCP Server MCP server in PolicyLayer and add a rule for mittwald_mail_address_update: 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 Mittwald MCP Server. Nothing to install.

What risk level is mittwald_mail_address_update? +

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

Can I rate-limit mittwald_mail_address_update? +

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

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

mittwald_mail_address_update is provided by the Mittwald MCP Server MCP server (mittwald/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.