list_shared_mailbox_members
List all members of a shared (team) mailbox. Shows each member
This record as markdown: /tools/trekmail-mcp-server/list-shared-mailbox-members.md
What list_shared_mailbox_members does on TrekMail MCP Server
AI agents call list_shared_mailbox_members to retrieve information from TrekMail MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why list_shared_mailbox_members is rated Low
This tool retrieves and displays information about shared mailbox members. It performs a query operation with no side effects, no data modification, no code execution, and no destructive actions. The blast radius of misuse is minimal—an attacker could enumerate team members but cannot modify, delete, or execute operations. Classified as Read.
From the tool's definition Tool name is 'list_shared_mailbox_members' and description states 'List all members of a shared (team) mailbox. Shows each member' — the verb 'List' and action of showing/displaying members indicates retrieval without modification.
Attacks that exploit this kind of access
The rule that runs list_shared_mailbox_members safely
PolicyLayer is an MCP gateway: it sits between your AI agents and TrekMail MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_shared_mailbox_members, this is the rule to start with:
list_shared_mailbox_members is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect TrekMail MCP Server, apply this rule, and every list_shared_mailbox_members call is checked against it from then on.
Questions about list_shared_mailbox_members
List all members of a shared (team) mailbox. Shows each member. 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_shared_mailbox_members: 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_shared_mailbox_members 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_shared_mailbox_members 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_shared_mailbox_members. 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_shared_mailbox_members 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.
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