enable_greylisting

Enable greylisting for all domains (delays first-time senders to block spam)

SERVERcPanel MCP Server SOURCE0xhayd3n/cpanel-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/0xhayd3n-cpanel-mcp-server/enable-greylisting.md

WHAT IT DOES

What enable_greylisting does on cPanel MCP Server

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

RISK

Why enable_greylisting is rated Medium

Enabling greylisting modifies email security settings globally across all domains by implementing a temporary rejection mechanism for unknown senders. While reversible (can be disabled), this is a Write action because it changes server configuration state.

From the tool's definition Tool name 'enable_greylisting' and description 'Enable greylisting for all domains' indicate a configuration change that modifies email handling behavior across all domains. This is a reversible write operation that alters system state.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs enable_greylisting safely

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

enable_greylisting Rate-limited

enable_greylisting 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": {
    "enable_greylisting": {
      "limits": [
        {
          "counter": "enable_greylisting_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 cPanel MCP Server, apply this rule, and every enable_greylisting call is checked against it from then on.

FAQ

Questions about enable_greylisting

What does the enable_greylisting tool do? +

Enable greylisting for all domains (delays first-time senders to block spam). It is categorised as a Write tool in the cPanel 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 enable_greylisting? +

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

What risk level is enable_greylisting? +

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

Can I rate-limit enable_greylisting? +

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

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

enable_greylisting is provided by the cPanel MCP Server MCP server (0xhayd3n/cpanel-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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