# DMARC Enforcement Check for Vendor Screening

> DMARC Enforcement Check for Vendor Screening is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Looks up a domain's published DMARC DNS record and classifies its enforcement policy as monitor (p=none), quarantine, reject, or missing.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/demand-domain-dmarc-enforcement-check-vendor-screening?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dmarc-enforcement-check-for-vendor-screening-7f9f79d5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rM-vbLEh4H9kb362Irlgv

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability dmarc-enforcement-check-for-vendor-screening-7f9f79d5 -d '<json body>'
```

Example prompt: What DMARC enforcement policy does stripe.com publish? I want to know if they're at reject, quarantine, monitor, or missing entirely.

## When to prefer this

Choose this endpoint when you need a lightweight, DNS-only classification of a domain's DMARC enforcement stance for vendor screening, supplier risk scoring, or compliance audits. It is ideal when you need a fast, cheap policy signal without sending email or verifying inbox existence. Prefer this over full email deliverability checks when the goal is specifically to assess whether a domain owner has signaled email authentication enforcement via DMARC.

## Known failure modes

- Domain does not exist in DNS — returns missing or error
- Malformed domain input — validation error
- DNS lookup timeout — transient failure, retry recommended
- DMARC record exists but is unparseable — may return ambiguous classification
- Rate limiting or network issues on the DNS resolver side

## How this service works

DMARC enforcement check for Vendor screening: Classify the published DMARC policy as monitor, quarantine, reject, or missing. DNS data only; does not send email or verify that an inbox exists.

## Output

Returns the DMARC enforcement classification for the queried domain: one of 'reject', 'quarantine', 'monitor' (p=none), or 'missing' (no DMARC record found). Derived entirely from DNS TXT record data; does not send email or probe mailboxes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "default": "example.com",
   "description": "Public DNS domain, e.g. example.com."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dmarc-enforcement-check-for-vendor-screening-7f9f79d5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)