change_mailbox_password
Change the password of a mailbox. Requires TREKMAIL_ALLOW_DESTRUCTIVE=true because password changes are irreversible.
This record as markdown: /tools/trekmail-mcp-server/change-mailbox-password.md
What change_mailbox_password does on TrekMail MCP Server
AI agents call change_mailbox_password to permanently remove resources in TrekMail MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why change_mailbox_password is rated Critical
The tool explicitly states that password changes are irreversible, qualifying it as a Destructive action. Changing a mailbox password can lock out legitimate users permanently if misused, representing a high blast radius in an email infrastructure context.
From the tool's definition 'password changes are irreversible' and 'Requires TREKMAIL_ALLOW_DESTRUCTIVE=true'
Attacks that exploit this kind of access
The rule that runs change_mailbox_password 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 change_mailbox_password, this is the rule to start with:
change_mailbox_password is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect TrekMail MCP Server, apply this rule, and every change_mailbox_password call is checked against it from then on.
Questions about change_mailbox_password
Change the password of a mailbox. Requires TREKMAIL_ALLOW_DESTRUCTIVE=true because password changes are irreversible. It is categorised as a Destructive tool in the TrekMail MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the TrekMail MCP Server MCP server in PolicyLayer and add a rule for change_mailbox_password: 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.
change_mailbox_password is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the change_mailbox_password 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 change_mailbox_password. 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.
change_mailbox_password 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.
More on TrekMail MCP Server, and thousands of servers like it.
Across the catalogue