Live SMTP verification

Every email,
verified before
it leaves your list.

7-layer verification: syntax, DNS, MX records, SMTP ping, SPF/DKIM signals, disposable detection, and deliverability scoring — in under a second.

Verify an email free See the signal flow →
99.9%
Accuracy
50M+
Verified
<1s
Response
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Signal Protocol

Seven verification layers,
one definitive answer

Every email address passes a sequential signal chain — nothing assumed, everything verified at source.

01
Syntax
RFC 5321 format validation
02
Domain DNS
Existence + age check
03
MX Records
Mail server lookup
04
SMTP Ping
Live handshake test
05
Disposable
Throwaway detection
06
Role-Based
info@ / admin@ flag
07
Score 0–100
Confidence rating
What we read

Inside every
email address

We don't just check format. We inspect the full signal stack — MX infrastructure, SPF records, DKIM signing, domain age, and catch-all configuration.

SPF Pass DKIM Signed Catch-all Domain Age MX Found Role-based Provider
99.9%
Verification accuracy
50M+
Emails verified
<1s
Response time
10K+
Active businesses
Capabilities

Built to catch every bounce

Real-time API, bulk CSV, catch-all detection — everything to protect your sender score.

Real-Time API
Sub-second REST endpoint. Validate at signup or send time — stop bounces before they happen.
Bulk Processing
Upload CSVs of 1,000+ emails. Parallel SMTP processing returns full results in minutes.
Catch-All Detection
Identifies domains accepting all mail — critical for B2B outbound where bounces kill deliverability.
Deliverability Scoring
0–100 confidence score per address. Filter your lists by threshold — not just pass/fail binary.
SPF / DKIM / MX
Full DNS signal inspection — SPF records, DKIM signing status, MX infrastructure analysis.
Disposable Blocking
Continuously updated database of 3,000+ throwaway and temporary email domains.
Pricing

One price, no surprises

No overage anxiety. No hidden fees. Cancel anytime.

Starter
$29
per month
5,000 verifications / mo
Single & bulk validation
REST API + CSV export
Get started
Professional
$99
per month
50,000 verifications / mo
Bulk + real-time API
Priority support + webhooks
Get started
Enterprise
$299
per month
250,000 verifications / mo
Unlimited bulk jobs
Dedicated support
Contact sales

Stop sending to dead inboxes.

10,000+ teams trust EmailValidex to protect their sender reputation.

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