# Delx Commerce — Email DMARC Alignment Check

> Delx Commerce — Email DMARC Alignment Check is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Checks whether a given DMARC policy, SPF alignment, and DKIM alignment result in a triggered enforcement disposition

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/email-dmarc-alignment-check?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-commerce-email-dmarc-alignment-check-c9c14cc2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_b8tqDhBjNaYYumlY_6BrS

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 delx-commerce-email-dmarc-alignment-check-c9c14cc2 -d '<json body>'
```

Example prompt: Check the DMARC alignment outcome for a reject policy where SPF is aligned but DKIM is not — will a disposition be triggered?

## When to prefer this

Use this endpoint when an AI agent needs a deterministic, privacy-safe, in-memory computation of DMARC alignment outcomes without retaining any input data. Ideal for agents automating email deliverability checks, security audits, or pre-send validation pipelines where verifiable, pay-per-result pricing and cryptographic evidence of processing are required. Prefer over DNS lookup tools when the raw alignment booleans are already known and only the policy disposition logic needs evaluation.

## Known failure modes

- Invalid policy value provided — must be a recognized DMARC policy string (none, quarantine, reject)
- Missing required fields cause validation errors
- Policy string exceeding 8192 characters rejected
- Payment not included or insufficient USDC causes 402 response
- Malformed JSON body returns 400 error

## How this service works

Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.

## Output

Returns a JSON object with the evaluated DMARC policy, whether alignment passed, whether the policy disposition was triggered, the operation status (pass/fail), and evidence metadata including a SHA-256 hash of the input, confirmation that no data is retained, and a count of zero external calls made during processing.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "policy": {
   "type": "string",
   "maxLength": 8192,
   "description": "Policy supplied to Email DMARC Alignment Check; used only for this bounded calculation and processed in memory without retention."
  },
  "spf_aligned": {
   "type": "boolean",
   "description": "SPF Aligned supplied to Email DMARC Alignment Check; used only for this bounded calculation and processed in memory without retention."
  },
  "dkim_aligned": {
   "type": "boolean",
   "description": "DKIM Aligned supplied to Email DMARC Alignment Check; used only for this bounded calculation and processed in memory without retention."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "policy": "reject",
   "aligned": true,
   "disposition_triggered": false
  },
  "schema": "delx/util-email-dmarc-alignment-check/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "a637adff054a2aa5dbbbaacdc17958bb8c0904c73bbaa862b93ef7f711c1be2c",
   "external_calls": 0
  },
  "operation": "web_reliability:email_dmarc_alignment_check"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-email-dmarc-alignment-check-c9c14cc2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from commerce.delx.ai](https://www.zero.xyz/host/commerce.delx.ai/llms.txt)