List all ISV (integrated service vendor) email providers connected to a location (e.g., Mailgun, SendGrid, Postmark).
AI agents call ghl_list_email_providers to retrieve information from GoHighLevel MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns configuration data about email providers linked to a location. It performs read-only introspection of existing integrations without creating, modifying, deleting, or executing operations. The blast radius of misuse is minimal as it only exposes metadata about email service connections.
From the tool's definition Tool name includes 'list' and description states 'List all ISV email providers connected to a location' - a retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access ghl_list_email_providers gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and GoHighLevel MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for ghl_list_email_providers:
{
"version": "1",
"default": "deny",
"tools": {
"ghl_list_email_providers": {}
}
}ghl_list_email_providers is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all ISV (integrated service vendor) email providers connected to a location (e.g., Mailgun, SendGrid, Postmark). It is categorised as a Read tool in the GoHighLevel MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GoHighLevel MCP Server MCP server in PolicyLayer and add a rule for ghl_list_email_providers: 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 GoHighLevel MCP Server. Nothing to install.
ghl_list_email_providers is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the ghl_list_email_providers 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.
Set action: deny in the PolicyLayer policy for ghl_list_email_providers. 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.
ghl_list_email_providers is provided by the GoHighLevel MCP Server MCP server (busybee3333/go-high-level-mcp-2026-complete). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 566 GoHighLevel MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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566 GoHighLevel MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.