Permanently delete the current account and all its messages.
AI agents call delete_account to permanently remove resources in Mail Tm MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool removes account and message data that cannot be recovered. While the blast radius is limited to a temporary email account (not critical infrastructure), the permanent nature of deletion and loss of all associated messages qualifies it as Destructive rather than Write.
From the tool's definition Tool description states 'Permanently delete the current account and all its messages' — irreversible destruction of data.
Attacks that exploit this kind of access
Permanently delete the current account and all its messages. It is categorised as a Destructive tool in the Mail Tm MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Mail Tm MCP Server MCP server in PolicyLayer and add a rule for delete_account: 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 Mail Tm MCP Server. Nothing to install.
delete_account is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_account 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 delete_account. 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.
delete_account is provided by the Mail Tm MCP Server MCP server (opastorello/mailtm-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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