get-smtp-configs

THE RISK

Low Risk

Why get-smtp-configs needs a policy

This tool retrieves data without modification, placing it in the Read category. Severity is elevated to 'high' because SMTP configurations are inherently sensitive—they contain authentication material and connection details that could be exploited if exposed to an untrusted AI agent, potentially enabling unauthorized email sending or credential theft.

From the tool's definition Tool name 'get-smtp-configs' and description 'Get all SMTP configurations' indicate a retrieval operation with no side effects.

Documented attack patterns abuse exactly the kind of access get-smtp-configs gives an agent:

POLICY

How to control get-smtp-configs

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get-smtp-configs": {}
  }
}

get-smtp-configs 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 SMTP 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 SMTP MCP Server tools

Destructive delete-email-template Delete an email template Destructive delete-smtp-config Delete an SMTP configuration Execute send-email Send an email to one or more recipients Write add-email-template Add a new email template Write add-smtp-config Add a new SMTP configuration Write send-bulk-emails Send emails in bulk to multiple recipients with rate limiting Write update-email-template Update an existing email template Write update-smtp-config Update an existing SMTP configuration

All 11 SMTP MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

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 get-smtp-configs

What does the get-smtp-configs tool do? +

Get all SMTP configurations. It is categorised as a Read tool in the SMTP MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get-smtp-configs? +

Register the SMTP MCP Server MCP server in PolicyLayer and add a rule for get-smtp-configs: 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 SMTP MCP Server. Nothing to install.

What risk level is get-smtp-configs? +

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

Can I rate-limit get-smtp-configs? +

Yes. Add a rate_limit block to the get-smtp-configs 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 get-smtp-configs completely? +

Set action: deny in the PolicyLayer policy for get-smtp-configs. 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 get-smtp-configs? +

get-smtp-configs is provided by the SMTP MCP Server MCP server (samihalawa/mcp-server-smtp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every SMTP MCP Server tool call.

Start from SMTP 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 →