set_dmarc_policy

What set_dmarc_policy does on 20i MCP Server

AI agents use set_dmarc_policy to create or update resources in 20i MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 20i MCP Server environment.

Why set_dmarc_policy is rated Medium

This tool modifies email authentication settings (DMARC policies) which affects email deliverability and security posture but is reversible. While the consequences of misconfiguration could be severe (email rejection, spam filtering), the action itself is Write-level as it can be undone. It does not execute arbitrary code, is not destructive in the irreversible sense, and has no financial impact.

From the tool's definition Tool name 'set_dmarc_policy' combined with description 'Set or delete DMARC policy for email authentication' indicates modification of email security configuration. The ability to 'set or delete' shows reversible state changes to authentication policies.

The rule that runs set_dmarc_policy safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 20i MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For set_dmarc_policy, this is the rule to start with:

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

Questions about set_dmarc_policy