mail_read_message

Read the full content of an email message by ID. Returns headers, body text, and attachment list.

SERVERAIquila — Nextcloud MCP Server SOURCEelgorro/aiquila

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aiquila-nextcloud-mcp-server/mail-read-message.md

WHAT IT DOES

What mail_read_message does on AIquila — Nextcloud MCP Server

AI agents call mail_read_message to retrieve information from AIquila — Nextcloud MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why mail_read_message is rated Low

This tool retrieves email message data (headers, body, attachments) by ID without modifying, deleting, or executing anything. It is a pure read operation with minimal blast radius—an AI agent misusing it could only over-retrieve or leak message contents, not cause damage to the system or data.

From the tool's definition Tool name 'mail_read_message' and description 'Read the full content of an email message by ID. Returns headers, body text, and attachment list.' — the verb 'Read' and return-only behavior indicate data retrieval with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs mail_read_message safely

PolicyLayer is an MCP gateway: it sits between your AI agents and AIquila — Nextcloud MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mail_read_message, this is the rule to start with:

mail_read_message Allowed

mail_read_message is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "mail_read_message": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect AIquila — Nextcloud MCP Server, apply this rule, and every mail_read_message call is checked against it from then on.

FAQ

Questions about mail_read_message

What does the mail_read_message tool do? +

Read the full content of an email message by ID. Returns headers, body text, and attachment list. It is categorised as a Read tool in the AIquila — Nextcloud MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on mail_read_message? +

Register the AIquila — Nextcloud MCP Server MCP server in PolicyLayer and add a rule for mail_read_message: 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 AIquila — Nextcloud MCP Server. Nothing to install.

What risk level is mail_read_message? +

mail_read_message is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit mail_read_message? +

Yes. Add a rate_limit block to the mail_read_message 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.

How do I block mail_read_message completely? +

Set action: deny in the PolicyLayer policy for mail_read_message. 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.

What MCP server provides mail_read_message? +

mail_read_message is provided by the AIquila — Nextcloud MCP Server MCP server (elgorro/aiquila). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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