# Old Colony Web Email Batch Preflight (2–10 Addresses)

> Old Colony Web Email Batch Preflight (2–10 Addresses) is a paid API for AI agents from api.oldcolonyweb.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-30).

Validates a batch of 2–10 email addresses for syntax, DNS, MX records, and disposable-domain indicators, returning ordered evidence and explicit unknown flags.

## Facts

- Endpoint: POST https://api.oldcolonyweb.com/v1/email/batch?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/old-colony-web-email-batch-preflight-2-10-addresses-1883a02d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SvYXU779aCs5DJZssMjaZ

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 old-colony-web-email-batch-preflight-2-10-addresses-1883a02d -d '<json body>'
```

Example prompt: Can you preflight these 5 email addresses for me — john.doe@example.com, test@mailinator.com, alice@company.org, bob@nonexistent-domain.xyz, carol@gmail.com — and tell me which ones have valid syntax, real DNS and MX records, and which ones look like disposable or throwaway addresses?

## When to prefer this

Choose this endpoint when you need to validate a small batch of 2–10 email addresses with layered checks (syntax, DNS, MX, disposable detection) in a single call at minimal cost ($0.003). It is ideal for pre-send hygiene, signup validation, or CRM cleanup where you want explicit evidence at each check level without performing an actual mailbox ping. Prefer the sibling 11–50 address endpoint for larger batches, and the privacy-focused sibling endpoint when you require that submitted addresses are not retained in any form.

## Known failure modes

- Fewer than 2 or more than 10 emails submitted — request rejected due to batch size constraints
- Malformed email strings exceeding 320 characters — may be flagged as syntax errors or rejected
- DNS/MX lookups may return unknown status for domains that are temporarily unreachable or have unusual configurations
- Disposable domain detection may have false negatives for newly created throwaway providers
- Network timeouts during DNS resolution may produce inconclusive unknown flags rather than definitive results

## How this service works

Email preflight 2–10 addresses for $0.003 per batch. Ordered syntax/DNS/MX/disposable evidence and explicit unknowns. Addresses processed, not intentionally logged in routine telemetry. No mailbox, deliverability or consent guarantee. Bazaar response example shows the first result only; actual response includes all items.

## Output

Returns an ordered array of validation results for each submitted email address, including syntax validity, DNS resolution status, MX record presence, and whether the domain is associated with disposable or temporary email providers. Explicit unknown flags are included where checks are inconclusive. Note: no mailbox ping, deliverability guarantee, or consent verification is performed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "emails": {
   "type": "array",
   "items": {
    "type": "string",
    "maxLength": 320,
    "minLength": 1
   },
   "maxItems": 10,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/old-colony-web-email-batch-preflight-2-10-addresses-1883a02d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.oldcolonyweb.com](https://www.zero.xyz/host/api.oldcolonyweb.com/llms.txt)