emails_list

List all emails with optional filtering

SERVERHubSpot MCP SOURCEblacksand-software/hubspot-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/blacksand-software-hubspot-mcp/emails-list.md

WHAT IT DOES

What emails_list does on HubSpot MCP

AI agents call emails_list to retrieve information from HubSpot MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why emails_list is rated Low

This tool retrieves and queries email records from HubSpot CRM without creating, modifying, or deleting any data. It is a straightforward read operation with optional filters for narrowing results. The blast radius of misuse is minimal—an agent could potentially retrieve sensitive email content or metadata, but cannot alter or destroy data. This is a standard Read category tool.

From the tool's definition Tool name 'emails_list' and description 'List all emails with optional filtering' indicate a retrieval operation with no data modification or deletion.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs emails_list safely

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

emails_list Allowed

emails_list is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about emails_list

What does the emails_list tool do? +

List all emails with optional filtering. It is categorised as a Read tool in the HubSpot MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on emails_list? +

Register the HubSpot MCP server in PolicyLayer and add a rule for emails_list: 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 HubSpot MCP. Nothing to install.

What risk level is emails_list? +

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

Can I rate-limit emails_list? +

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

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

emails_list is provided by the HubSpot MCP server (blacksand-software/hubspot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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