OrbiSearch
Email Lookup & Validation Tool

Find and validate B2B emails with pricing that actually scales.

Discover emails stale databases miss. Validate ‘risky’ emails your competitors discard.

Find valid work emails
Validate all B2B emails
Resolve catch-alls
Bulk CSV processing
No monthly subscription
Volume pricing

500 free validations • 100 free lookups

I'm extremely impressed upon testing it. It is very comparable to BounceBan in results, which I've previously found to be the best catch-all validation tool on the market. At the higher tiers, the pricing seems good also.

Grant Beckmann

Grant Beckmann·The Deal Lab

Also trusted by

QuickEnrich
Firmable
Synadia
Code District

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

No credit card required

Stop Discarding Valuable Prospects

Traditional validators discard contacts you could be reaching.

Catch-all domains accept all email addresses to prevent spam. Traditional validators can't verify if these addresses exist, so they mark them 'risky' and recommend discarding them, losing you valuable prospects.

More validated emails→More prospects reached→More opportunities→More closed deals

Your prospect list

Traditional Validators

Your Email List.csv
Invalid
Catch-all
DISCARDED
Valid

Traditional validation approach

Smaller pool of reachable contacts

OrbiSearch

Your Email List.csv
Invalid

Includes invalid catch-alls

Catch-all (risky)
Valid

Includes validated catch-alls

$

Larger pool of reachable contacts

More validated contacts to reach

Same list. More reach.

Competitors discard contacts you could be reaching. Validate more, sell more.

500 free validations • 100 free lookups • No credit card required

Find valid work emails by name + domain

Provide a first name, last name, and company domain. OrbiSearch finds the email and validates it through our industry-leading verification engine. Every result returned is pre-validated.

1
You provide three fields

First name, last name, and company domain. Submit a single lookup or upload a CSV in bulk. Real-time API also available.

2
We find the email

OrbiSearch discovers the working email address in real time and checks whether the person is still working at the company, so you don't end up with stale addresses.

3
Live, not from a stale database

Apollo and other database products serve emails from indexes that may be months old. OrbiSearch finds and validates each email live, the moment you ask, so you're not running outreach to addresses that have already rotted.

75%+ find rate on our testing of real-world datasets.

Asif Ali, CodeDistrict

“I ran a test on the data and achieved an email find rate of approximately 60%, which is very good. For context, I previously tested 100k records with 34 email patterns and received about 60.5% results. In my experience, no tool consistently provides 80-100% valid emails on large datasets, largely because lead sources often include some inaccurate or low-quality company data. Overall, these results look very solid.”

Asif Ali

CodeDistrict

100 free credits on signup. No credit card required.

Validate the emails your competitors give up on

Most validators flag SEG-protected, catch-all, and greylisted addresses as ‘risky’ and tell you to discard them. OrbiSearch resolves them.

SEG-protected

Secure Email Gateways like Mimecast, Proofpoint, and Barracuda sit in front of company mailboxes and block standard verification probes. Most validators stop here and return ‘unknown’. OrbiSearch still confirms whether the mailbox behind the gateway exists.

Catch-all

Catch-all domains accept mail for any address, so traditional validators can't tell whether a specific mailbox exists. OrbiSearch uses proprietary mailbox detection to resolve catch-alls in seconds, returning a definitive deliverable or undeliverable result without sending any emails.

Greylisted

Greylisting servers temporarily reject the first verification attempt, expecting the sender to retry later. Most validators give up on the first rejection. OrbiSearch handles the retry properly and returns a verdict instead of an ‘unknown’.

Dual-Layer Verification: how OrbiSearch validates

We combine SMTP validation with mailbox detection

Email Input

Layer 1

SMTP

Standard Check

+

Layer 2

Detection

Secret Sauce

Verified

Industry-Leading Bounce Prevention

The lowest false positive rate among catch-all validators, tested on real campaign data.

538 real hard bounces. 4 validators. 1 winner.

Tested on real campaign data from cold outreach campaigns.

OrbiSearch
NEW
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.

500 free validations • Outperforms BounceBan on real campaign data

Two benchmarks. Same winner.

On 2,224 Apollo-sourced emails, OrbiSearch classified 68.3% as valid, more than Icypeas (56.0%) or MailTester Ninja (48.3%) on the same input list.

Aleix Torres, IntellyClick

“Out of a batch from Apollo with 2,224 emails: MailTester Ninja 48.3% valid, Icypeas 56.0% valid, OrbiSearch 68.3% valid. Clearly OrbiSearch outperformed.”

Aleix Torres

IntellyClick

Speed Comparison: 10 Minutes vs 3 Days

10,000 emails validated in under 10 minutes vs 48-72 hour wait

OrbiSearch

< 10 mins

for 10,000 emails

  • 1,000+ emails per minute
  • Start outreach immediately
  • Instant CSV export
  • Real-time API responses

Email-Sending Validators

48-72 hrs

for 10,000 emails

  • Send emails & wait for bounces
  • 3 days minimum wait
  • Leads go cold waiting
  • High false positive rate

See exactly how we validate more catch-alls

Three-step verification process with industry-leading accuracy

1

SMTP Validation Layer

  • Connects directly to the mail server using SMTP protocol
  • Verifies MX records and server configuration
  • Identifies catch-all server configurations
  • Checks if the mailbox exists

Note: This is where most validators stop. We're just getting started.

2

Mailbox Detection Layer

  • Our secret sauce
  • Directly checks whether the mailbox exists
  • Works on most catch-all domains
  • No emails sent

Note: We've solved the catch-all problem that stumps traditional validators.

3

Accuracy Guarantee

  • Checks in real-time whether email exists
  • No cached results
  • Continuous learning from validation feedback
  • Lowest false positive rate among catch-all validators

Note: Tested on real campaign data, outperforming BounceBan, Icypeas, and Enrichley.

Everything you need to find and validate B2B emails

Built for data platforms, GTM agencies, and RevOps teams

Instant Verification

No waiting, immediate results for all email types including catch-alls

  • • Real-time validation
  • • No queues or delays
  • • Instant API responses
Email Finder

Find work emails by name and company domain, with each result pre-validated through our verification engine.

  • • Single lookup, bulk CSV, or REST API
  • • Real-time, not from a stale database
  • • Employment freshness check
Pay Per Use

No monthly commitments, scale up or down as needed

  • • Only pay for what you use
  • • No subscription required
  • • Flexible scaling
Bulk CSV Processing

Upload CSV files and get results in seconds, not hours

  • • Process thousands at once
  • • Automatic deduplication
  • • Export validated results
API Access

RESTful API with simple integration for your workflows

  • • Easy integration
  • • Comprehensive docs
  • • Real-time responses
Catch-all Specialist

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

  • • Dual-layer verification
  • • Instant results
  • • Better than traditional solutions

No credit card required • Instant verification • API access

Frequently Asked Questions

Get answers to common questions about our email validation technology

Does OrbiSearch find emails as well as validate them?

Yes. Our email finder takes first name, last name, and company domain as input, finds the work email in real time, and validates it through our verification engine before returning the result. We don't return guesses. Every email we hand back has been verified, so what you see is what you can send to.

What's the find rate of OrbiSearch's email finder?

75%+ on our testing of real-world datasets. Find rate depends mainly on two things: whether the person is still working at the company, and whether the company actually hosts its mailboxes at the domain you provided. Older lead lists degrade over time as people change jobs. Job-board domains, parent-company domains, or organisations that route email through a different domain will return lower find rates. Customer Asif Ali at CodeDistrict reported approximately 60% on his data, which he described as 'very solid' and consistent with the industry observation that 'no tool consistently provides 80-100% valid emails on large datasets.'

How does OrbiSearch's email finder differ from Apollo or ZoomInfo databases?

Apollo and ZoomInfo serve emails from cached databases that may be months out of date. OrbiSearch finds and validates each email in real time, the moment you ask. We also check whether the person is still working at the company, so you don't end up running outreach to people who left long ago.

Can I use the email finder via API?

Yes. Both the email finder and validator are available via REST API. Submit single lookups for live form validation, or batch requests for bulk processing. Full API documentation is available.

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.

How does email validation work?

Email validation works through multiple steps: First, it checks the email syntax for proper formatting. Second, it verifies the domain exists and has valid MX records. Third, it connects to the mail server via SMTP to verify the mailbox exists. OrbiSearch adds a fourth layer with proprietary catch-all resolution technology.

What are catch-alls?

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.

What are some other names for catch-alls?

Catch-all email addresses are also known as: accept-all emails, wildcard email aliases, default addresses, or unverifiable emails. All these terms describe domains that accept mail to any address, whether it exists or not.

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 significantly more catch-alls than competitors, dramatically expanding your reachable audience.

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 accuracy.

Can you verify greylisted catch-all emails?

Yes. Many domains use both greylisting (temporary delays) and catch-all configurations together. While most validators handle greylisting alone, the combination of greylisting + catch-all is extremely difficult to resolve. OrbiSearch can verify these challenging cases that other validators mark as 'unknown'.

Can you verify all catch-alls?

We can verify significantly more catch-all email addresses than competitors. Some domains have exceptionally restrictive security that prevents any form of verification by any validator. If we determine there is a chance the mailbox could exist, we mark these as 'risky' so you can decide how to handle them.

How accurate is OrbiSearch's catch-all resolution?

OrbiSearch validates significantly more catch-alls than competitors with industry-leading accuracy and the lowest false positive rate among catch-all validators. We deliver instant results compared to email-sending validators that take 48-72 hours.

What makes OrbiSearch different from other email validators?

OrbiSearch validates significantly more catch-all emails than competitors without sending any messages. While others mark catch-alls as 'risky' or send actual emails and wait days for bounces, we use proprietary dual-layer mailbox detection to verify mailbox existence in real-time. In testing on 538 real hard bounces, OrbiSearch stopped 96.3% of bounces, outperforming BounceBan (94.6%), Icypeas (78.1%), and Enrichley (67.1%).

How many free validations does OrbiSearch give me?

You get 100 free credits when you sign up, which equals 500 email validations. No credit card required. This lets you test our catch-all resolution capabilities and see the difference in your validation results immediately.

Does OrbiSearch store or share email addresses?

No. We process all validations in real-time and don't maintain databases of email addresses. Your data is never stored, shared, or sold. We're fully GDPR and CCPA compliant, ensuring complete privacy and security for your email lists.

How fast is the OrbiSearch 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 via the OrbiSearch API?

Yes, our RESTful API supports bulk validation with CSV upload, webhook callbacks, and real-time streaming results. Process thousands of emails per minute with simple integration. Full documentation and code examples available for seamless implementation into your existing workflows.

Why is it bad to skip email verification before cold outreach?

Skipping verification destroys your sender reputation. Sending to invalid emails causes hard bounces (>5% gets you blacklisted), while unverified emails lead to spam complaints. Once your domain is blacklisted or has poor reputation, all your emails - even to valid addresses - go to spam. Recovery takes months of careful reputation rebuilding.

What happens if I email unverified catch-all addresses?

It's a gamble that damages your entire outreach. Many catch-all addresses don't actually exist, leading to high bounce rates. This triggers spam filters, ruins your sender reputation, and gets your domain blacklisted. OrbiSearch validates significantly more catch-alls than competitors, reducing this risk.

What's the impact of emailing invalid addresses?

Invalid emails cause hard bounces that immediately damage your sender reputation. Just 1-2% hard bounce rate triggers spam filters, while 5% can get you blacklisted. Each bounce signals to ESPs that you're using poor quality lists, causing even your valid emails to land in spam. This creates a death spiral for your cold outreach efforts.

What's the difference between hard and soft bounces?

Hard bounces are permanent failures (invalid email, domain doesn't exist) that damage your reputation immediately - these addresses must be removed instantly. Soft bounces are temporary issues (full inbox, server down) that might resolve themselves. For cold outreach, hard bounces above 1% and soft bounces above 5% will tank your deliverability and get you flagged as spam.

See the difference yourself

No credit card required

Industry-leading find rate

75%+ on real-world datasets

Instant results, no waiting

Get results in seconds, not days

Industry-leading validation

Outperforms BounceBan, Icypeas, and Enrichley

CCPA Compliant
GDPR Compliant
256-bit SSL