OrbiSearch

Free Email Validator

Industry-leading catch-all email resolution

Instantly validate email addresses without sending any emails — completely free

Industry-leading catch-all resolution
Instant results without sending emails
Zero false positives guarantee
500 free validations on signup

Give it a go. Validate an email address!

Enter an email address to validate and check deliverability. Free email verification tool to verify if an email exists, including catch-all domain detection.

Free email validation tool • Verify email addresses instantly

How Email Validation Works

Our email validator checks email syntax, verifies domain validity, confirms MX records exist, and tests mailbox deliverability. We can validate catch-all email addresses that other email verification tools mark as risky or unknown. Check if an email address is valid before sending to improve email deliverability and avoid bounces.

Email Validation Features

  • Real-time email address verification
  • Syntax validation and typo detection
  • Domain and MX record checking
  • Mailbox existence verification
  • Industry-leading catch-all resolution
  • Free email validation with no signup required

Need Bulk Validation?

Validate thousands of emails at once

Validate List

Find Email Addresses

Discover valid emails at any company

Learn About OrbiSearch

Why choose our free email validation tool?

Industry-leading catch-all resolution that validates up to 11.5× more than competitors

Industry-Leading Resolution

Resolve catch-all emails that other validators mark as 'risky' — with zero false positives

Instant Verification

Get results in seconds without sending emails — unlike competitors who wait 48-72 hours

Zero False Positives Guarantee

If we say an email exists, it exists. No guessing, no email sending — just accurate verification

See how we compare to other email validators

We tested 2,451 confirmed catch-all emails — here's what percentage each validator resolved:

OrbiSearch
Your Choice
54%
✓ Instant results
ZeroBounce34%
NeverBounce31%
MillionVerifier5%
Scrubby*N/A
Sends emails - leads to high false positives

Test conducted October 2025 on 2,451 confirmed catch-all email addresses from real cold outreach campaign

*Scrubby uses a different method: sends actual emails to check for bounces (not comparable)

Expand Your Reachable Audience with Catch-All Resolution

Stop discarding valuable prospects. Sign up for OrbiSearch for industry-leading catch-all resolution, bulk CSV processing, and instant API access.

500 free validations to start
No credit card required
Bulk CSV upload & export
Real-time API access
Start Validating Catch-Alls Free

Frequently Asked Questions

Get answers to common questions about email validation and catch-all resolution

What is email validation?

Email validation is the process of verifying that an email address exists, is deliverable, and can receive messages. It checks syntax, domain validity, and mailbox existence without sending any actual emails, helping you maintain clean email lists and high deliverability rates.

What are catch-all emails?

Catch-all domains (also called accept-all or wildcard domains) are configured to accept emails sent to any address at that domain, even if the specific mailbox doesn't exist. They accept everything to prevent spammers from discovering valid addresses, representing a significant portion of business email addresses.

How does catch-all email verification work?

OrbiSearch uses dual-layer verification: First, standard SMTP validation identifies the domain as catch-all. Then, our proprietary detection layer uses advanced techniques to verify if the specific mailbox actually exists, without sending any emails. This achieves industry-leading catch-all validation with zero false positives.

Why should I care about catch-alls?

Catch-alls represent a significant portion of B2B email lists. Traditional validators can't verify these addresses, forcing you to discard valuable prospects. OrbiSearch validates up to 11.5× more catch-alls than competitors, dramatically expanding your reachable audience.

How accurate is OrbiSearch's catch-all resolution?

OrbiSearch validates up to 11.5× more catch-alls than competitors with a zero false positives guarantee. If we say an email exists, it exists. We deliver instant results compared to email-sending validators that take 48-72 hours.

How fast is the email validation process?

OrbiSearch validates emails instantly - under 10 minutes for 10,000 emails (1,000+ per minute). Single validations complete in under 2 seconds. Unlike email-sending validators that take 48-72 hours, you get results immediately and can start your outreach while leads are hot.

Can I validate emails in bulk?

Yes, our platform supports bulk validation with CSV upload. Process thousands of emails per minute with automatic deduplication and instant export of validated results. Sign up for free to access bulk validation features.