smartlead_get_mailbox_count

THE RISK

Low Risk

Why smartlead_get_mailbox_count needs a policy

This tool retrieves and queries mailbox count data without modifying, deleting, or executing any operations. It is a simple data retrieval function that returns aggregated information about existing mailboxes. No data is created, modified, deleted, or used to trigger external actions—making it purely a Read operation with minimal risk.

From the tool's definition Tool name contains 'get' and description states 'Get the count of all mailboxes', indicating a retrieval operation with no side effects.

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

POLICY

How to control smartlead_get_mailbox_count

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

policy.json

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

smartlead_get_mailbox_count 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 Simplified 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 →

Free to start. No card required.

EXPLORE

Related tools and policies

More Smartlead Simplified MCP Server tools

Financial smartlead_place_order_mailboxes Confirm and place order for domains and mailboxes to be purchased. Destructive smartlead_delete_campaign Delete a campaign permanently. Destructive smartlead_delete_campaign_webhook Delete a specific webhook from a campaign. Destructive smartlead_delete_folder Delete a folder from Smart Delivery. Destructive smartlead_delete_lead Delete a lead permanently. Destructive smartlead_delete_smart_delivery_tests Delete multiple Smart Delivery tests in bulk. Destructive smartlead_remove_email_from_campaign Remove an email account from a campaign. Execute smartlead_stop_automated_test Stop an active automated test before its end date.

All 78 Smartlead Simplified MCP Server tools →

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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_mailbox_count

What does the smartlead_get_mailbox_count tool do? +

Get the count of all mailboxes used for any spam test. It is categorised as a Read tool in the Smartlead Simplified MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on smartlead_get_mailbox_count? +

Register the Smartlead Simplified MCP Server MCP server in PolicyLayer and add a rule for smartlead_get_mailbox_count: 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 Simplified MCP Server. Nothing to install.

What risk level is smartlead_get_mailbox_count? +

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

Can I rate-limit smartlead_get_mailbox_count? +

Yes. Add a rate_limit block to the smartlead_get_mailbox_count 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_mailbox_count completely? +

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

smartlead_get_mailbox_count is provided by the Smartlead Simplified MCP Server MCP server (jonathan-politzki/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 Simplified MCP Server tool call.

Start from Smartlead Simplified 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 →