Verify Any Email with Catch-All Resolution

MX validation, SMTP verification, catch-all resolution, and SEG detection. Every email returns valid or invalid, even catch-alls — no ambiguous “risky” labels. 5-10x cheaper than your current provider.

Get your API key Read the docs

99.5%

Verification Accuracy

150M+

Emails Verified

$0.0006

Per Verification

Features

Every check your emails need

Multi-layer verification that catches invalid, disposable, and risky emails before they damage your sender reputation.

SMTP Verification

We connect to the recipient's mail server and verify the mailbox exists — without sending a message. Real verification, not pattern guessing.

MX Record Check

Verify that the domain has valid mail exchange records and is actually configured to receive email.

Catch-All Resolution

Go beyond detection — our catch-all validation resolves individual mailboxes within accept-all domains. Most verifiers just flag these as ‘unknown’.

Provider & SEG Detection

See if the inbox runs on Google Workspace, Microsoft 365, or another host — and whether a Secure Email Gateway like Proofpoint, Barracuda, or Mimecast sits in front of it. Route smarter, land more.

REST API + Clay Integration

Full REST API for programmatic verification at scale. Integrate into your own product, CRM workflow, or automation pipeline. Works with Clay, n8n, Zapier, and Make.

Bulk CSV Upload

Upload a CSV directly in the dashboard. Download results when ready. No code required.

How It Works

Verify thousands of emails in minutes.

What happens when you hit Verify.

1

Upload Your Email List for Verification

Upload a CSV for bulk email list verification, or call the API.

2

SMTP Verification + Catch-All Resolution

Each email goes through syntax checks, MX validation, SMTP verification, catch-all resolution, and SEG detection. All in one step.

3

Download Verified Email Results

Receive a detailed email validation report: valid or invalid with catch-all verdict, SEG provider, email host, and MX records. No ambiguous "risky" or "unknown" labels.

API

One API call. Verified email back.

Simple REST endpoint. Works with any language, any platform.

🔒 wizleads.io/api

Headers

x-api-key

wl_7X5mgc8j...TxC

Query Parameters

emailjane.doe@stripe.com

Response 200 OK 38ms 112 B

{
  "email": "jane.doe@stripe.com",
  "verified": true,
  "provider": "google",
  "catchall": false
}

Full API documentation →

Competitive Advantage

Catch-All Email Verification That Resolves to Valid or Invalid

Catch-all domains accept email to any address, so standard SMTP email verification always returns “yes”. Most email verification tools give up and label these “risky” or “unknown”.

WizLeads is the only bulk email verifier that resolves individual mailboxes on catch-all domains, even behind Proofpoint, Mimecast, and Barracuda gateways. You get a definitive valid or invalid verdict with near-zero bounce rate.

Stop throwing away 40%+ of your enterprise leads because your email validation service can't verify catch-all emails.

Other Verifiers

Flag catch-all emails as "unknown"
15-30% bounce rate on catch-all domains
Blocked by Secure Email Gateways
You lose valid enterprise prospects

WizLeads

Resolves catch-all to valid or invalid
<0.5% bounce rate on verified catch-alls
Verifies behind Proofpoint, Mimecast
Unlock every enterprise prospect

40%+

of enterprise emails are on catch-all domains. If your email verifier can't verify catch-all emails, you're losing nearly half your enterprise prospects.

<0.5%

bounce rate on resolved catch-all email addresses. WizLeads only charges for conclusive results. If we can't resolve it, you're not charged.

Comparison

How WizLeads compares to other email verifiers

We benchmarked the top tools on accuracy, catch-all handling, and pricing.

Feature	WizLeads	LeadMagic	MillionVerifier	ZeroBounce	NeverBounce
Catch-All Handling	Resolves to valid/invalid	Resolves to valid/invalid	"Risky" label	Detect only	"Unknown" label
Pricing	From $39/mo (20,000 verifications)	From $49/mo (8,000 verifications)	From $39/mo (10,000 verifications)	From $39/mo (2,000 verifications)	From $49/mo (10,000 verifications)
SEG Detection	Yes	No	No	No	No
Bulk Search	CSV + API	CSV + API	CSV + API	CSV + API	CSV + API

Pricing

Simple, Fair Pricing

Credits roll over for 1 month.

Freelancer

$39

Billed monthly

10,000 credits

20,000 verifications
100% cloud-based
REST API + Bulk CSV
Smart link splitting
Lead concierge

What you get

3,333 Emails Enriched or

20,000 Emails Verified or

10,000 Sales Nav Leads Scraped

Choose Freelancer

Works with your stack

Connect via REST API or plug into your favorite automation platform.

REST API

Any tool that can call a REST endpoint works with WizLeads.

Use Cases

Who uses email verification?

From cold email teams cleaning lists to developers building real-time validation into their stack.

Cold Email Teams

Clean lists before campaigns. Reduce bounce rates and protect sender reputation. Works with Smartlead, Instantly, Lemlist, and any sending tool you use.

Sales & SDR Teams

Verify prospect emails before outreach. Stop wasting time on bad addresses. Enrich directly from Sales Navigator scrapes and prioritize high-quality leads first.

Revenue Operations

Bulk validate your entire CRM. Upload hundreds of thousands of leads and clean your database in one pass. Keep your HubSpot, Salesforce, or Pipedrive data fresh.

Developers & Agencies

Build email verification into your product or automate it in your workflow. One REST call returns a verified result. Native support for Clay, n8n, Zapier, and Make.

Verification Report

0.56% bounce rate

7,483

Valid

2,461

Valid Catch-All

56

Invalid

Under 2% guarantee — you're covered

100% Money-Back Guarantee

If your bounce rate exceeds 2% on emails we marked as valid, we refund 100% of your credits. No questions asked. That's how confident we are in our email verification accuracy.

Start Verifying — Risk Free

Subject to email infrastructure diagnosis.

FAQ

Frequently asked questions

Email verification checks whether an email address is valid and deliverable. WizLeads runs syntax checks, MX validation, SMTP verification, catch-all resolution, and SEG detection to give you a definitive valid or invalid verdict. No message is sent to the recipient.

Three things: (1) We resolve catch-all domains to valid/invalid instead of labeling them "risky" or "unknown". (2) We detect SEG providers like Proofpoint and Mimecast, which no other standalone verifier offers. (3) We combine finding and verifying in one platform. Most competitors only do one or the other.

Catch-all domains accept email to any address, so standard SMTP checks always say "yes". Most verifiers give up and label these "risky". WizLeads uses proprietary algorithms to determine if a specific mailbox actually exists, giving you a definitive answer. This gives you up to 40% more usable leads.

SEG (Secure Email Gateway) detection identifies if an inbox is protected by Proofpoint, Barracuda, Mimecast, Appriver, or Sophos. These inboxes have stricter spam filtering. Knowing this upfront lets you adjust sending strategy, warm up properly, or segment outreach accordingly.

No. Enrichment includes verification. Every email returned has already been verified with catch-all detection and SEG identification. You only need standalone verification for re-validating existing email lists from other sources.

Send an email address and get back a JSON response with verification result, catch-all status, and email provider detail. Token-based auth via x-api-key header. Works with Clay, n8n, Make, Zapier, or anything that can call a REST endpoint. Full docs at wizleads.io/api.

It can be in any format, the column with email addresses is auto-detected. Upload in the dashboard, download verified results with verification status, catch-all status, and email provider detail columns added.

Yes. Monthly plan credits roll over for 1 month, quarterly plan credits roll over for 1 quarter. Credits are shared across verification, enrichment, and Sales Navigator scraping.