Email Address Validation

Verify the validity of emails in real time

Protect your database from invalid and disposable emails. Real-time validation right in the form, without slowing your customers down.

100% deliverabilityNew

We also verify the mailbox exists – that the address is real and accepts mail, not just that it is well-formed.

We fix typos in the address too

Missing @, a dot instead of it, or swapped letters in the domain – we offer the corrected address right away.

danielgmail.com daniel@gmail.com daniel.gmail.com daniel@gmail.com daniel@gamil.com daniel@gmail.com
Try the demo
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Step 1 of 2
Email Validation
Validation checks:
Syntax and format
DNS MX records
Mailbox existence
Phishing database
Disposable email
Typo detection
0
Valid
0
Invalid
0
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Key benefits

Why validate emails?

Protection against spam

Automatic detection of phishing domains and disposable emails (10minutemail, guerrillamail, etc.).

Phishing database: 1.5M+ domains
Temporary emails: 6000+ services

Higher deliverability

We verify the existence of the mailbox directly on the mail server, not just the domain's MX records. Smart typo detection (gmial.com → gmail.com) saves your customers.

Real-time mailbox existence and DNS MX check
Automatic correction of common typos
100% deliverability for verified addresses

Intelligent autocomplete

After typing @, local email domains are automatically suggested based on the selected country (seznam.cz, gmail.com, centrum.cz, etc.).

Localized domains for every market
Faster form completion

Real-time validation

Email while typing

Format check, MX records, mailbox existence and typo detection happen instantly

No UX slowdown

Average response < 100ms thanks to Redis and DNS cache

API & JS widget

Works via REST API or directly in your store checkout

Email validation

How do we validate emails?

1. Syntax & format

RFC-based validation, checking for @ and domain presence

2. DNS MX records

Checking the existence of the mail server via DNS lookup

3. Phishing database

1.5M+ phishing domains from phish.co.za (updated every 3 days, Redis cache)

4. Disposable emails

6000+ temporary email services from GitHub mailchecker

5. Typo detection

Automatic correction of common domain typos (gmial.com → gmail.com)

Live demo

Try email validation

Our JS widget automatically validates email addresses directly in your form. Try the demo — domain suggestions and validation happen instantly while typing.

GB - Great Britain

Try typing danielgmail.com, daniel.gmail.com or daniel@gamil.com – we fix all three to daniel@gmail.com.

Get rid of bad data today!

Start using email validation, reduce bounce rate and improve data quality.

Get started
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