Get the full RFC822 raw source of a message, including all headers. Useful for debugging delivery issues, analyzing headers, or forwarding as .eml.
AI agents call get_raw_message to retrieve information from TrekMail 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 and returns message data without modifying, deleting, or executing any actions. It reads email message content and metadata. While the raw source could theoretically contain sensitive information, the tool itself performs no destructive or state-changing operations, making it a Read category tool with low severity.
From the tool's definition Tool name 'get_raw_message' and description states it 'Get[s] the full RFC822 raw source of a message, including all headers' for purposes like 'debugging delivery issues, analyzing headers, or forwarding as .eml'.
Attacks that exploit this kind of access
Get the full RFC822 raw source of a message, including all headers. Useful for debugging delivery issues, analyzing headers, or forwarding as .eml. It is categorised as a Read tool in the TrekMail MCP Server MCP Server, which means it retrieves data without modifying state.
Register the TrekMail MCP Server MCP server in PolicyLayer and add a rule for get_raw_message: 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 TrekMail MCP Server. Nothing to install.
get_raw_message 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_raw_message 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_raw_message. 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_raw_message is provided by the TrekMail MCP Server MCP server (trekmail/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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