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Old Colony Web Email Batch Preflight (2–10 Addresses)
x402
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.
Price / call$0.003
Success—
StatusUnknown
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.
Example use cases
Pre-send list hygiene for outreach
“Before I send my sales outreach, can you run these 7 email addresses through email preflight and flag any that have bad syntax, missing MX records, or look like disposable addresses: sarah@prospect.io, mike@tempmail.com, dev@realcompany.com, noreply@fakeco.xyz, jill@gmail.com, test123@guerrillamail.com, ceo@legitimatebiz.org?”
Signup form submission validation
“We just got 4 new signups and I want to verify these emails are real before creating accounts — can you check syntax, DNS, and MX records and flag any disposable ones: user1@trashmail.me, newuser@outlook.com, friend@mycompany.net, tester@yopmail.com?”
CRM data cleanup for small contact batch
“I have 6 email addresses from our CRM that I'm not sure are still valid — please preflight them for syntax errors, missing DNS, bad MX records, and disposable domain signals: old.contact@defunct.biz, active@partnerfirm.com, info@legit.org, throwaway@dispostable.com, executive@enterprise.io, admin@fakesite.net?”
Technical details
Endpoint
POSThttps://api.oldcolonyweb.com/v1/email/batch?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| emails | array |
Tags
x402
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