AI agents call list_inbox_emails to retrieve information from Apple Mail 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/queries email data with no side effects. The 'list' prefix and 'inbox_emails' suffix are standard patterns for Read operations. While the specific description is empty, the server's stated purpose of 'reading and searching emails' and the pattern of sibling tools (all read-focused like get_email_thread, get_inbox_overview) confirm this is a query operation.
From the tool's definition Tool name 'list_inbox_emails' indicates retrieval of email list from inbox. Server description emphasizes 'reading, searching' emails.
Documented attack patterns abuse exactly the kind of access list_inbox_emails gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Apple Mail MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_inbox_emails:
{
"version": "1",
"default": "deny",
"tools": {
"list_inbox_emails": {}
}
}list_inbox_emails is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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list_inbox_emails. It is categorised as a Read tool in the Apple Mail MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Apple Mail MCP Server MCP server in PolicyLayer and add a rule for list_inbox_emails: 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 Apple Mail MCP Server. Nothing to install.
list_inbox_emails 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_inbox_emails 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_inbox_emails. 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_inbox_emails is provided by the Apple Mail MCP Server MCP server (patrickfreyer/apple-mail-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 26 Apple Mail MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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26 Apple Mail MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.