AI agents call list_drafts to retrieve information from IMAP Email MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool only retrieves and enumerates draft emails from the user's mailbox. It does not create, modify, delete, or execute any actions. Listing/querying data is characteristic of Read category. Severity is low because inadvertent exposure would only leak draft email metadata, not cause destructive or financial harm.
From the tool's definition Tool name 'list_drafts' and description 'List all draft emails' indicate a retrieval operation with no side effects. This is a query operation that reads data without modification.
Documented attack patterns abuse exactly the kind of access list_drafts gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and IMAP Email MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_drafts:
{
"version": "1",
"default": "deny",
"tools": {
"list_drafts": {}
}
}list_drafts is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all draft emails. It is categorised as a Read tool in the IMAP Email MCP Server MCP Server, which means it retrieves data without modifying state.
Register the IMAP Email MCP Server MCP server in PolicyLayer and add a rule for list_drafts: 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 IMAP Email MCP Server. Nothing to install.
list_drafts 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 list_drafts 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 list_drafts. 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.
list_drafts is provided by the IMAP Email MCP Server MCP server (jdickey1/imap-email-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from IMAP Email MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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10 IMAP Email MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.