Delete an email
AI agents call delete_email to permanently remove resources in Microsoft MCP — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Email deletion is a destructive operation that permanently removes data from a user's mailbox. Once deleted, recovery is typically limited or impossible without administrative intervention. The high severity reflects the risk that an AI agent could inadvertently delete important emails, conversations, or records that the user depends on.
From the tool's definition Tool name 'delete_email' combined with description 'Delete an email' indicates irreversible deletion of email data. The verb 'delete' is explicitly destructive and cannot be undone.
Attacks that exploit this kind of access
Delete an email. It is categorised as a Destructive tool in the Microsoft MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Microsoft MCP server in PolicyLayer and add a rule for delete_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 Microsoft MCP. Nothing to install.
delete_email 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_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 delete_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.
delete_email is provided by the Microsoft MCP server (purva-kashyap/microsoft-mcp). 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 →