List all configured email services.
AI agents call list_services to retrieve information from MiniMail MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves configuration information about email services without modifying, executing, or deleting anything. It is a passive read operation that queries system state. The blast radius of misuse is minimal—an attacker gains knowledge of available email services but cannot manipulate them directly through this tool alone.
From the tool's definition Tool name is 'list_services' and description states 'List all configured email services.' This is a query/retrieval operation with no side effects.
Attacks that exploit this kind of access
List all configured email services. It is categorised as a Read tool in the MiniMail MCP Server MCP Server, which means it retrieves data without modifying state.
Register the MiniMail MCP Server MCP server in PolicyLayer and add a rule for list_services: 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 MiniMail MCP Server. Nothing to install.
list_services 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 list_services 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 list_services. 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.
list_services is provided by the MiniMail MCP Server MCP server (sandraschi/email-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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