Email Verifier Logo

The Only Verifier Engineered To Resolve Catch-Alls

Stop settling for "Unknown" results. Our advanced engine negotiates with Secure Email Gateways (SEGs) to definitively resolve shielded catch-alls-safely recovering 30% more valid leads that standard verifiers miss.

Here’s what our customers say

Amazing service and quality! Very professional and friendly.

- Alice

Very professional and friendly. The UI is clean and easy to use.

- Bob

Exceeded my expectations! The accuracy is top-notch.

- Charlie

Will definitely recommend. Saved us hours of manual work.

- Diana

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Core Protocols

Why SanitizeMail?

Deep Catch-All
Verify

Most verifiers guess. We use proprietary SMTP handshakes to detect valid inboxes hidden behind catch-all firewalls.

Toxic Domain
Filter

Automatically strip disposable, spam-trap, and high-risk domains from your lists before you ever hit send.

99%
Deliverability

Our real-time pinging ensures the mailbox exists at the exact moment you verify. No cached or stale data.

Developer First

Integrate in Seconds

Stop bad signups at the source. Connect our real-time API to your registration forms and block catch-all or disposable emails instantly.

50ms
Global Latency
REST API
Standard JSON
Get API Key
// Install: npm install axios
const axios = require('axios');
async function verifyEmail() {
try {
const res = await axios.post('https://sanitizemail.com/api/v1/verify',
{ email: 'target@catchall.com' },
{ headers: { 'x-api-key': 'YOUR_API_KEY' } }
);
console.log(res.data);
} catch (err) {
console.error(err);
}
}
// 200 OK Response JSON
{ "valid": true, "score": 0.95, "is_catchall": true }

See What Others Miss

Standard verifiers mark "Catch-all" emails as "Risky" or "Unknown".

SanitizeMail is different. We analyze server patterns to give you a definitive Safe or Unsafe status, unlocking 30% more leads for your business.

Analyze My List Free
Verification Report
ID: #8823-BATCH-A
Completed
valid_user@gmail.com
Deliverable
admin@catchall.com
Catch-all (Safe)
fake@spamtrap.org
Toxic
Pricing Infrastructure

Our Flexible
Pricing.

Email Volume Selector
Units

Or Quick-Select

Investment Total
$0.00

$0.00 / email

Journal Area

Operational
Insights.

Servers Online & Ready

Don't Let Catch-Alls Burn Your List.

Join 10,000+ marketers using SanitizeMail to clean toxic domains and uncover valid emails hidden behind firewalls.

No credit card required 100 Free Credits

99.9%
Uptime SLA
GDPR
Compliant
256-bit
Bank-Grade Security
24/7
Priority Support
Verification Intelligence

Frequently
Asked Questions?

Everything you need to know about SanitizeMail and our proprietary verification engine.

How do you verify "Catch-All" emails accurately?

Unlike standard verifiers that return "Unknown," SanitizeMail uses a proprietary SMTP handshake. We engage with mail servers in real-time to detect specific responses that indicate if a mailbox exists, providing a definitive "Safe" or "Invalid" status for catch-all domains.

What counts as a "Toxic" domain?

Toxic entities include disposable providers, known spam traps, and domains associated with bot activity. Removing these is critical as they can instantly damage your sender reputation and lead to domain blacklisting.

How fast is the API and Throughput?

Extremely fast. Average latency is <50ms for syntax checks. SMTP verification resolves in 1-3 seconds. Built on a Go-based architecture, our API handles millions of concurrent requests without throttling or performance degradation.

Is my data secure and GDPR compliant?

Absolutely. We use 256-bit bank-grade encryption and a strictly transient processing model. We never sell or share your data, and we do not store lists longer than necessary for verification, ensuring full GDPR compliance.

Do you offer a free trial or test credits?

Yes. Upon registration, you automatically receive 100 free verification credits to test our accuracy. No credit card is required to start testing the SanitizeMail engine.

SM
AI

Still have technical queries?

Open Support Ticket
Need Help? Chat with us!
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