unsubscribeContact · Mailmodo MCP: Risk & Policy

WHAT IT DOES

What unsubscribeContact does on Mailmodo

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

WHY IT NEEDS A POLICY

Why unsubscribeContact needs a policy

Unsubscribing or suppressing a contact changes their status in the system, preventing future communications. This is a Write operation (modifies data) rather than Destructive because the contact record still exists and could potentially be resubscribed (as evidenced by the sibling 'resubscribeContact' tool).

From the tool's definition 'Unsubscribe or suppress contact in mailmodo' — modifies a contact's subscription status

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

unsubscribeContact Rate-limited

unsubscribeContact 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": {
    "unsubscribeContact": {
      "limits": [
        {
          "counter": "unsubscribecontact_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 Mailmodo, so you can run agents against it safely.

FAQ

Questions about unsubscribeContact

What does the unsubscribeContact tool do? +

Unsubscribe or supress contact in mailmodo. It is categorised as a Write tool in the Mailmodo MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on unsubscribeContact? +

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

What risk level is unsubscribeContact? +

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

Can I rate-limit unsubscribeContact? +

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

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

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

// THE FULL RECORD

unsubscribeContact is one line of Mailmodo's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →