Email Validation — Verify Deliverability, Mailbox & Catch-All ✅

Email Validation — Verify Deliverability, Mailbox & Catch-All ✅ No API Key

Validate any email address and get clear deliverability signals — a valid / invalid result, whether the mailbox actually exists, catch-all detection, the mail provider and a confidence level. Powered by the Neuralverge API. No API key or account required.

Ideal for cleaning lists before a send, cutting bounce rates, protecting sender reputation, and validating signups, leads and CRM records.

✨ Why this Actor

• ✅ Real deliverability verdict — valid / invalid plus a plain-English message such as "Mailbox exists".
• 🪤 Catch-all detection — flags catch-all domains that accept anything, so you can weight the result accordingly.
• 🏷️ Provider & confidence — see which mail provider hosts the address and how confident the check is.
• 🔑 No API key or account — the check runs on the Neuralverge backend.
• ⚡ Real-time & structured — a fresh verdict each run, ready for a spreadsheet, CRM or AI pipeline.

🔧 How it works

1. Provide an email address — e.g. steve@builder.io.
2. Run the Actor. The validation happens on the Neuralverge backend.
3. Get one dataset row per email — the input email plus the structured machine verdict. Export to CSV, JSON or Excel, or pull it over the Apify API.

Input

One email per run.

Field	Type	Notes
email	string	The email address to validate.

{
  "email": "steve@builder.io"
}

What you'll receive

Each dataset row has these top-level blocks:

• email — the address you submitted.
• machine — the structured verdict: result (valid / invalid / …), message (e.g. "Mailbox exists"), isCatchAll (whether the domain accepts any address), provider (the mail provider) and confidence (high / medium / low).

Read isCatchAll alongside result. On a catch-all domain the server accepts every address, so a valid result is weaker evidence — treat confidence as a guide, not a guarantee.

Example output (real run)

A real dataset row for an email validation, shown in full — the structured machine-readable verdict (machine). The human markdown summary is produced by the system but omitted from the dataset.

{
  "email": "steve@builder.io",
  "machine": {
    "email": "steve@builder.io",
    "result": "valid",
    "message": "Mailbox exists",
    "isCatchAll": false,
    "provider": "GOOGLE",
    "confidence": "medium"
  }
}

Genuine output from a live run — the address is deliverable, the mailbox exists, and the domain is not catch-all.

Pricing

Pay per validated email — $0.001 per email ($1 per 1,000) returned to the dataset.

Event	Price
Actor start	Free
Verdict returned (per dataset row)	$0.001

You're billed per verdict returned to the dataset. If the check errors out and returns nothing, you are not charged. Pricing is on top of your Apify platform usage.

Integrations & API

Results are stored in a standard Apify dataset — export as CSV, JSON, XML or Excel, or fetch on demand through the Apify API. The Actor also plugs into Apify's integrations (Make, Zapier, n8n, webhooks) and can be called from any MCP client.

FAQ

Do I need an account or API key? No. The validation runs on the Neuralverge backend.

What does result mean? valid means the address looks deliverable and the mailbox was resolved; invalid means it was not. Always read it together with isCatchAll and confidence.

What is a catch-all domain? A domain configured to accept mail for any address. On such domains a valid result is less certain, because the server won't reject unknown mailboxes.

Can I validate a whole list? Run one email per run and collect the rows in the dataset, or drive the Actor from Apify's integrations to process a list.

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Disclaimer: This Actor is an independent tool. Use the results in compliance with applicable laws (e.g. GDPR, CAN-SPAM) and only where you have a lawful basis.