List all email aliases for a mailbox. Shows each alias address, receiving/sending status, and whether it
AI agents call list_aliases to retrieve information from TrekMail 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 and displays information about email aliases associated with a mailbox. The verb 'List' and the passive description of showing status information confirm this is a read-only query operation with no capability to modify, delete, or execute actions.
From the tool's definition Tool name 'list_aliases' and description 'List all email aliases for a mailbox. Shows each alias address, receiving/sending status...' indicates data retrieval with no modification or side effects.
Attacks that exploit this kind of access
List all email aliases for a mailbox. Shows each alias address, receiving/sending status, and whether it. It is categorised as a Read tool in the TrekMail MCP Server MCP Server, which means it retrieves data without modifying state.
Register the TrekMail MCP Server MCP server in PolicyLayer and add a rule for list_aliases: 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 TrekMail MCP Server. Nothing to install.
list_aliases 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_aliases 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_aliases. 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_aliases is provided by the TrekMail MCP Server MCP server (trekmail/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
list_aliases is one line of TrekMail MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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