create_forwarding_address

SERVERTrekMail MCP Server SOURCEtrekmail/mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/trekmail-mcp-server/create-forwarding-address.md

WHAT IT DOES

What create_forwarding_address does on TrekMail MCP Server

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

RISK

Why create_forwarding_address is rated Medium

Reversibly creates email routing configuration affecting message delivery infrastructure.

From the tool's definition Create a forwarding address; mail is handed straight on to recipients

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_forwarding_address safely

PolicyLayer is an MCP gateway: it sits between your AI agents and TrekMail MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_forwarding_address, this is the rule to start with:

create_forwarding_address Rate-limited

create_forwarding_address 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_forwarding_address": {
      "limits": [
        {
          "counter": "create_forwarding_address_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect TrekMail MCP Server, apply this rule, and every create_forwarding_address call is checked against it from then on.

FAQ

Questions about create_forwarding_address

What does the create_forwarding_address tool do? +

Create a forwarding address on a domain: mail to it is handed straight on to the recipients and nothing is stored. No mailbox is created. Delivery requires Pro or Agency; on Nano and Starter the rule is saved and starts working after an upgrade. It is categorised as a Write tool in the TrekMail 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 create_forwarding_address? +

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

What risk level is create_forwarding_address? +

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

Can I rate-limit create_forwarding_address? +

Yes. Add a rate_limit block to the create_forwarding_address 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_forwarding_address completely? +

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

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

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