imap_add_account · Email MCP Server MCP: Risk & Policy

WHAT IT DOES

What imap_add_account does on Email MCP Server

AI agents use imap_add_account to create or update resources in Email MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Email MCP Server environment.

WHY IT NEEDS A POLICY

Why imap_add_account needs a policy

Adding an account creates a new configuration entry that persists and can be used for subsequent email operations. This is a reversible Write operation (accounts can be removed), but with high severity because it involves storing email credentials and establishing access to external email providers.

From the tool's definition Tool name 'imap_add_account' indicates account creation/registration. Server description states it 'enables users to read, search, and send emails across multiple accounts and providers' with 'secure AES-256 encryption', implying credential storage and…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

imap_add_account Rate-limited

imap_add_account stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "imap_add_account": {
      "limits": [
        {
          "counter": "imap_add_account_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Email MCP Server, so you can run agents against it safely.

FAQ

Questions about imap_add_account

What does the imap_add_account tool do? +

imap_add_account. It is categorised as a Write tool in the Email MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on imap_add_account? +

Register the Email MCP Server MCP server in PolicyLayer and add a rule for imap_add_account: 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 Email MCP Server. Nothing to install.

What risk level is imap_add_account? +

imap_add_account is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit imap_add_account? +

Yes. Add a rate_limit block to the imap_add_account 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 imap_add_account completely? +

Set action: deny in the PolicyLayer policy for imap_add_account. 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 imap_add_account? +

imap_add_account is provided by the Email MCP Server MCP server (sventern/mcp_email). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.