marketo_send_sample_email

Send a sample/preview of an email to a specified email address. Optionally render with a specific lead\

SERVERMarketo MCP Server SOURCEalexleventer/marketo-mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/alexleventer-marketo-mcp/marketo-send-sample-email.md

WHAT IT DOES

What marketo_send_sample_email does on Marketo MCP Server

AI agents invoke marketo_send_sample_email to trigger actions in Marketo MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why marketo_send_sample_email is rated High

This tool triggers an external operation — sending an email — which constitutes executing an action with real-world side effects (email delivery). It is not purely a read or write operation on stored data; it causes an email to be dispatched. Severity is medium because misuse could result in unwanted emails being sent to arbitrary addresses, but it is limited to sample/preview emails rather than mass campaigns.

From the tool's definition Send a sample/preview of an email to a specified email address

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs marketo_send_sample_email safely

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

marketo_send_sample_email Rate-limited

marketo_send_sample_email stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "marketo_send_sample_email": {
      "limits": [
        {
          "counter": "marketo_send_sample_email_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about marketo_send_sample_email

What does the marketo_send_sample_email tool do? +

Send a sample/preview of an email to a specified email address. Optionally render with a specific lead\. It is categorised as a Execute tool in the Marketo MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on marketo_send_sample_email? +

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

What risk level is marketo_send_sample_email? +

marketo_send_sample_email is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit marketo_send_sample_email? +

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

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

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

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