Delete an empty mailbox/folder (only works when mailbox is empty)
AI agents call delete_mailbox to permanently remove resources in MCP Mail Organizer — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes email folders/mailboxes, which cannot be undone. While the constraint that the mailbox must be empty limits the immediate data loss, deletion of organizational structures is irreversible and could disrupt email workflows or archival organization. An AI agent misusing this could delete important folder hierarchies.
From the tool's definition Tool name is 'delete_mailbox' and description states it 'Delete an empty mailbox/folder'. The verb 'delete' combined with the irreversible removal of a mailbox structure constitutes a destructive operation.
Attacks that exploit this kind of access
Delete an empty mailbox/folder (only works when mailbox is empty). It is categorised as a Destructive tool in the MCP Mail Organizer MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the MCP Mail Organizer MCP server in PolicyLayer and add a rule for delete_mailbox: 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 Mail Organizer. Nothing to install.
delete_mailbox 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_mailbox 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_mailbox. 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_mailbox is provided by the MCP Mail Organizer MCP server (neomody77/mcp-mail-organizer). 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.
Teams ship this data inside their own products. See what a licence covers →