Bulk Email Verifier — Syntax, MX, Disposable & Deliverability

Verify thousands — or millions — of emails at once. Paste a list and get, for every address: syntax validity, MX/domain check, disposable & role-based detection, free-provider flag, and a deliverability score with a clear valid / risky / invalid status.

Fast, cheap and keyless — clean your lead lists before you send, and cut bounces.

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Why this Actor?

A dirty email list wrecks your sender reputation: hard bounces, spam traps and wasted sends. Verifying emails one by one is slow, and most tools charge per credit. This Actor cleans a whole list at once — DNS-based, so it's fast and inexpensive at scale — and tells you exactly which addresses are safe to send to.

• Clean lead lists before an outreach or newsletter campaign.
• Cut bounce rate and protect sender reputation.
• Enrich a CRM with deliverability status and flags.
• Filter forms/signups by catching disposable and role-based addresses.

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What you get

One record per email:

Field	Description
email	The address
status	valid, risky, or invalid
isValid	Whether it's a valid, deliverable address
deliverabilityScore	0–100 confidence score
reason	Why this status
domain	Email domain
syntaxValid	Passes RFC syntax
hasMx	Domain has MX records (can receive mail)
mxHost	Primary mail server
isDisposable	Disposable / temporary domain
isRoleBased	Role address (info@, admin@, sales@…)
isFreeProvider	Free provider (Gmail, Yahoo, Outlook…)
scrapedAt	Timestamp

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Example output

{
  "email": "ceo@microsoft.com",
  "status": "valid",
  "isValid": "true",
  "deliverabilityScore": "92",
  "reason": "deliverable",
  "domain": "microsoft.com",
  "syntaxValid": "true",
  "hasMx": "true",
  "mxHost": "microsoft-com.mail.protection.outlook.com",
  "isDisposable": "false",
  "isRoleBased": "false",
  "isFreeProvider": "false",
  "scrapedAt": "2026-07-08T15:00:00.000Z"
}

• bad@nonexistent-domain.com → invalid (no MX — the domain can't receive mail).
• test@mailinator.com → risky (disposable domain).
• info@company.com → risky (role-based).
• john@gmail.com → valid (free provider).

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How the status is decided

Status	Meaning
invalid	Bad syntax, or the domain has no MX record (cannot receive mail) — don't send.
risky	Deliverable domain but disposable or role-based — send with caution.
valid	Good syntax + real mail domain, not disposable, not role — safe to send.

The deliverabilityScore (0–100) gives you a single number to threshold on.

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Input

Field	Type	Default	Description
emails	array	—	Required. The emails to verify (thousands to millions).
checkDisposable	boolean	true	Flag disposable/temporary domains against an up-to-date blocklist of 7,900+ domains.
maxConcurrency	integer	50	Emails verified in parallel.

Example

{
  "emails": ["john@gmail.com", "info@company.com", "test@mailinator.com"],
  "checkDisposable": true
}

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Use cases in detail

1. Clean a lead list before outreach

Run your list, keep status: valid, drop invalid, and review risky — you'll cut bounces dramatically and protect your domain's reputation.

2. Reduce newsletter bounce rate

Verify subscribers before a big send; remove dead domains and disposables.

3. Enrich & segment a CRM

Add deliverabilityScore, isFreeProvider and isRoleBased to segment personal vs business vs role contacts.

4. Signup / form hygiene

Catch disposable and role addresses at the point of collection.

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How to use it

1. Click Try for free.
2. Paste your emails.
3. Click Start.
4. Export results as JSON, CSV, Excel, or via the Apify API.

Runs are fast — domains are cached, so a big list resolves in seconds.

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Calling from the API

curl -X POST "https://api.apify.com/v2/acts/YOUR_ACTOR_ID/runs?token=YOUR_APIFY_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "emails": ["john@gmail.com", "test@mailinator.com"] }'

Then fetch the dataset:

$curl "https://api.apify.com/v2/acts/YOUR_ACTOR_ID/runs/last/dataset/items?token=YOUR_APIFY_TOKEN&format=csv"

Works with webhooks, Zapier, Make and n8n.

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Frequently asked questions

How does it check deliverability without sending? It validates syntax, checks the domain's MX records (whether it can receive mail at all), and flags disposable, role-based and free-provider addresses. This catches the large majority of bad addresses reliably.

Does it do SMTP mailbox verification? No — SMTP mailbox probing requires port 25 (blocked on virtually all cloud/hosting networks) and is unreliable anyway (catch-all domains, greylisting, false positives). This Actor gives you honest, fast, DNS-based verification instead of a flaky SMTP guess.

How many emails can it handle? Thousands to millions — domains are cached, so unique-domain lookups (not per-email) drive the work.

What's a role-based address? Addresses like info@, admin@, sales@ that go to a team, not a person — often lower engagement and higher spam-complaint risk.

Is the disposable list current? Yes — it fetches an up-to-date community blocklist (7,900+ domains) on each run, with a built-in fallback.

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Tips

• Threshold on deliverabilityScore (e.g. keep ≥ 80) for a quick clean.
• Keep valid, drop invalid, review risky for the safest list.
• Filter isRoleBased / isFreeProvider to separate business from personal contacts.

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Notes

This Actor performs DNS/MX lookups and pattern checks on the emails you provide. It does not send mail. Verify that you have the right to process the email addresses you submit, in line with applicable privacy laws (GDPR/CAN-SPAM etc.).

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Support

Want catch-all detection, SMTP (where possible), or another flag? Open an issue from the Actor's page.