smartlead_get_domain_blacklist

THE RISK

Low Risk

Why smartlead_get_domain_blacklist needs a policy

The tool retrieves existing blacklist status information for a domain. No data is created, modified, deleted, or any external operations are triggered. The blast radius of misuse is minimal since an attacker would only gain visibility into blacklist metadata, not the ability to alter email delivery systems or campaign data. This is a standard informational lookup operation.

From the tool's definition Tool name contains 'get_' and description states 'Retrieve domain blacklist status' — both indicate a read-only query operation with no side effects or modifications.

Documented attack patterns abuse exactly the kind of access smartlead_get_domain_blacklist gives an agent:

POLICY

How to control smartlead_get_domain_blacklist

PolicyLayer is an MCP gateway — it sits between your AI agents and SmartLead MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for smartlead_get_domain_blacklist:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "smartlead_get_domain_blacklist": {}
  }
}

smartlead_get_domain_blacklist is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register SmartLead MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about smartlead_get_domain_blacklist

What does the smartlead_get_domain_blacklist tool do? +

Retrieve domain blacklist status for a specific test. It is categorised as a Read tool in the SmartLead MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on smartlead_get_domain_blacklist? +

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

What risk level is smartlead_get_domain_blacklist? +

smartlead_get_domain_blacklist is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit smartlead_get_domain_blacklist? +

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

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

smartlead_get_domain_blacklist is provided by the SmartLead MCP Server MCP server (win8428/smartlead-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every SmartLead MCP Server tool call.

Start from SmartLead MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →