AI agents call get_email_content to retrieve information from Email 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 email content—a read-only operation with no side effects. Severity is medium rather than low because email content may contain sensitive personal or financial information that could be leaked if an AI agent misuses access, but the tool itself performs no destructive or financial actions.
From the tool's definition Tool name 'get_email_content' and description '获取指定邮件的详细内容' (retrieve detailed content of specified email) indicate data retrieval without modification.
Documented attack patterns abuse exactly the kind of access get_email_content gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Email MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_email_content:
{
"version": "1",
"default": "deny",
"tools": {
"get_email_content": {}
}
}get_email_content is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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获取指定邮件的详细内容. It is categorised as a Read tool in the Email MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Email MCP Server MCP server in PolicyLayer and add a rule for get_email_content: 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 MCP Server. Nothing to install.
get_email_content 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_email_content 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_email_content. 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_email_content is provided by the Email MCP Server MCP server (timecyber/email-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 7 Email MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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7 Email MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.