Search emails across all folders with advanced filters for analysis
AI agents call outlook_search_emails to retrieve information from Outlook without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool searches and retrieves email data based on filters. It does not create, modify, delete, or execute operations. The capability to search with filters is characteristic of a Read operation. The blast radius of misuse is minimal — an attacker could search for sensitive emails but cannot alter, send, or delete them.
From the tool's definition Tool name and description: 'Search emails across all folders with advanced filters for analysis' — retrieves and queries email data without modifying, deleting, or executing code. The action is purely informational.
Documented attack patterns abuse exactly the kind of access outlook_search_emails gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Outlook, and nothing reaches the server without passing your rules. This is the rule we recommend for outlook_search_emails:
{
"version": "1",
"default": "deny",
"tools": {
"outlook_search_emails": {}
}
}outlook_search_emails is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Search emails across all folders with advanced filters for analysis. It is categorised as a Read tool in the Outlook MCP Server, which means it retrieves data without modifying state.
Register the Outlook MCP server in PolicyLayer and add a rule for outlook_search_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 Outlook. Nothing to install.
outlook_search_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 outlook_search_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 outlook_search_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.
outlook_search_emails is provided by the Outlook MCP server (xenoxilus/outlook-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Outlook, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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43 Outlook tools catalogued and risk-classified — across an index of 43,000+ MCP servers.