create_identity

Configure an existing mailbox/alias persona, or create a Send As identity. Pass external_account_id when you read that 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-identity.md

WHAT IT DOES

What create_identity does on TrekMail MCP Server

AI agents use create_identity 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_identity is rated Medium

Creates or modifies email identities reversibly, affecting sender personas and mailbox configurations.

From the tool's definition create/configure mailbox/alias persona, Send As identity

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_identity 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_identity, this is the rule to start with:

create_identity Rate-limited

create_identity 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_identity": {
      "limits": [
        {
          "counter": "create_identity_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_identity call is checked against it from then on.

FAQ

Questions about create_identity

What does the create_identity tool do? +

Configure an existing mailbox/alias persona, or create a Send As identity. Pass external_account_id when you read that address. 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_identity? +

Register the TrekMail MCP Server MCP server in PolicyLayer and add a rule for create_identity: 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_identity? +

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

Can I rate-limit create_identity? +

Yes. Add a rate_limit block to the create_identity 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_identity completely? +

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

create_identity 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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