OrbiSearch

Verify If an Email Address Exists

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
Industry-leading bounce prevention
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
Hundreds of millions of emails verifiedRated 5★ on G2

Trusted by

QuickEnrich
Firmable
Synadia
Code District

How to Verify If an Email Address Exists

To verify whether an email address exists, paste it into the validator above. We check the syntax, the domain's MX records, and probe the mailbox via SMTP without sending an actual email. Most checks return a verdict in under two seconds, including catch-all domains that other validators give up on.

1

Enter an email address

Type or paste a single email address into the OrbiSearch email validator. No signup is required to validate up to your daily anonymous quota.

2

OrbiSearch verifies the mailbox without sending a test email

OrbiSearch checks the email syntax, the domain's MX records, and inspects mail server signals to verify the mailbox exists. We never send an actual email to the address being verified.

3

Get an instant deliverability verdict

Within roughly two seconds, OrbiSearch returns a clear status: safe, risky, invalid, or unknown. Catch-all addresses that other validators discard are resolved by our V3 engine when possible.

Why choose our free email validation tool?

Industry-leading catch-all resolution that outperforms BounceBan, Icypeas, and Enrichley on real campaign data

Industry-Leading Resolution

Resolve catch-all emails that other validators mark as 'risky', with industry-leading accuracy

Instant Verification

Get results in seconds without sending emails. Unlike competitors who wait 48 to 72 hours.

Accuracy You Can Trust

Industry-leading bounce prevention tested on real campaign data. No guessing, no email sending.

See how we compare to other catch-all validators

538 real hard bounces tested across 4 validators. Data from real cold outreach campaigns.

OrbiSearch
Your Choice
96.3%3.7% FP
Bounces stopped
BounceBan
94.6%5.4% FP
Icypeas
78.1%21.9% FP
Enrichley
67.1%32.9% FP

Bounces stopped = emails flagged as Invalid or Risky. False positives = valid emails incorrectly flagged as bad.

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

Pay-as-you-go from $0.0002 per validation. No monthly subscription. Credits never expire.

Start Validating Free

Frequently Asked Questions

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

How can I verify if an email address exists?

Paste the email address into the validator above. OrbiSearch checks the syntax, confirms the domain has valid MX records, and probes the mailbox via SMTP to confirm it accepts mail. We never send a test email. Most addresses return a verdict in under two seconds, including catch-all domains that other validators cannot resolve.

Can I check if an email is active without sending it?

Yes. SMTP-level verification opens a connection to the recipient's mail server and asks whether the mailbox accepts mail, without delivering anything. The recipient never sees a message. OrbiSearch uses this method by default and adds catch-all and SEG-aware probes for cases where the basic SMTP check returns ambiguous results.

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 a proprietary detection layer probes mail server signals to verify whether the specific mailbox actually exists, without sending any emails. This achieves industry-leading catch-all accuracy where traditional validators give up.

How accurate is OrbiSearch's catch-all detection, and why does it matter?

Catch-alls make up a significant portion of B2B email lists, and traditional validators discard them as risky, costing you valid prospects. OrbiSearch validates significantly more catch-alls than competitors with the lowest false positive rate in the category, expanding your reachable audience without inflating bounce rates.

How fast is the email validation process?

Single validations complete in under two seconds. Bulk validation processes 1,000+ emails per minute, so a 10,000-email list finishes in under ten minutes. Unlike email-sending validators that take 48 to 72 hours, results are immediate so you can start outreach while leads are hot.

Can I validate emails in bulk?

Yes. The platform supports bulk validation via 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.

Compare OrbiSearch with other validators

vs ZeroBouncevs NeverBouncevs BounceBanvs Icypeasvs Enrichleyvs MillionVerifier

Next steps

Spam-check your copyValidate a CSV insteadFor data platformsFor GTM agenciesCatch-all domains researchPricing