setup_dkim · Domain Suite MCP: Risk & Policy

WHAT IT DOES

What setup_dkim does on Domain Suite

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

WHY IT NEEDS A POLICY

Why setup_dkim needs a policy

This tool modifies email authentication infrastructure by adding a DKIM record, which is a reversible DNS change (can be deleted via delete_dns_record). However, misconfiguration could break email deliverability or create authentication gaps.

From the tool's definition Add DKIM TXT record — creates a new DNS record (DKIM authentication) for email domain configuration.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

setup_dkim Rate-limited

setup_dkim 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": {
    "setup_dkim": {
      "limits": [
        {
          "counter": "setup_dkim_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 Domain Suite, so you can run agents against it safely.

FAQ

Questions about setup_dkim

What does the setup_dkim tool do? +

Add DKIM TXT record. It is categorised as a Write tool in the Domain Suite MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on setup_dkim? +

Register the Domain Suite MCP server in PolicyLayer and add a rule for setup_dkim: 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 Domain Suite. Nothing to install.

What risk level is setup_dkim? +

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

Can I rate-limit setup_dkim? +

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

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

setup_dkim is provided by the Domain Suite MCP server (oso95/domain-suite-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.