获取常用邮箱的SMTP配置信息
AI agents call get_smtp_configs to retrieve information from Email Sender 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 or queries configuration data for email providers (Gmail, QQ, Outlook, 163). It is a read-only operation with no side effects—it returns configuration information that already exists. Even if an AI agent misuses it, the blast radius is minimal since it only exposes non-sensitive metadata about SMTP endpoints and settings that are typically public knowledge.
From the tool's definition Tool name 'get_smtp_configs' and description '获取常用邮箱的SMTP配置信息' (Get SMTP configuration information for commonly used email providers) indicate a retrieval operation that returns preset configurations without modifying any data or triggering external actions.
Attacks that exploit this kind of access
获取常用邮箱的SMTP配置信息. It is categorised as a Read tool in the Email Sender MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Email Sender 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 Email Sender MCP Server. Nothing to install.
get_smtp_configs 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 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.
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.
get_smtp_configs is provided by the Email Sender MCP Server MCP server (wyccywwyc/emailmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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