Retrieve an email by its ID (Sidemail API)
AI agents call get-email to retrieve information from Sidemail 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 existing email data without creating, modifying, or deleting anything. It is a simple query operation with minimal blast radius if misused by an AI agent; the worst outcome is unauthorized access to an existing email's contents. No financial, destructive, or code execution risk.
From the tool's definition Tool name is 'get-email' and description states 'Retrieve an email by its ID' — a read operation with no modification or side effects.
Attacks that exploit this kind of access
Retrieve an email by its ID (Sidemail API). It is categorised as a Read tool in the Sidemail MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Sidemail MCP Server MCP server in PolicyLayer and add a rule for get-email: 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 Sidemail MCP Server. Nothing to install.
get-email 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 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. 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 is provided by the Sidemail MCP Server MCP server (sidemail/sidemail-mcp-server). 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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