Get the raw message (MIME-formatted) for a sandbox message.
AI agents call get-sandbox-message-raw to retrieve information from Mcp Mailtrap without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries sandbox message content in MIME format. It has no side effects—it does not send, delete, modify, or execute operations. The sandbox context further suggests this is a testing/inspection tool for email content review. Classification as Read is appropriate with low severity since the blast radius of misuse is limited to information disclosure of test messages.
From the tool's definition Tool name 'get-sandbox-message-raw' and description 'Get the raw message (MIME-formatted) for a sandbox message' indicate retrieval of existing sandbox message data with no modification or deletion.
Attacks that exploit this kind of access
Get the raw message (MIME-formatted) for a sandbox message. It is categorised as a Read tool in the Mcp Mailtrap MCP Server, which means it retrieves data without modifying state.
Register the Mcp Mailtrap MCP server in PolicyLayer and add a rule for get-sandbox-message-raw: 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 Mcp Mailtrap. Nothing to install.
get-sandbox-message-raw 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-sandbox-message-raw 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-sandbox-message-raw. 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-sandbox-message-raw is provided by the Mcp Mailtrap MCP server (mcp-mailtrap). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get-sandbox-message-raw is one line of Mcp Mailtrap's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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