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The #1 Email Verifier for 600,000+ Clients

Why people choose ZeroBounce

With our guaranteed 99.6% accuracy and outstanding 24/7 support, it's easy to see why so many companies trust ZeroBounce. But we don't stop there. We adhere to GDPR, SOC 2 Type 2, CCPA and PCI protocols. Not enough? Here are a few perks available once you sign up for a free account.

High Accuracy

When you clean your email list with us, expect to get it back in excellent shape. Our email checker is 99.6% accurate - guaranteed. Companies like Amazon, Netflix and Sephora use it to avoid bounces and ensure their campaigns and newsletters make it to the inbox.

Top-Level Security

ZeroBounce is one of the most secure email verification platforms. You get military-grade protection for your data. Every file you upload is locked with an encryption cipher only you have access to. Also, we don't store your data and files for more than 30 days.

A.I. Catch-All Email Validator

Confused about your catch-all emails? ZeroBounce's AI Scoring helps you further validate them so you can nurture only the best contacts. This tool allows you to determine the potential validity of your catch-all emails and save solid leads you would otherwise toss.

Email List Enhancement

Where available, our email verifier adds missing data to your list - such as your customers' full name, gender and location. This improves segmentation and allows targeting specific groups with more relevant campaigns. The extra cost for this feature? Zero - we cover it.

Email Deliverability Tools

With ZeroBounce, you can test your mail server configurations and check that everything is set up correctly. Also, you can see where your email is going to be delivered with popular providers - before you send it to your list. If it's in Spam, you can edit and fix it until it arrives in the inbox.

Blacklist Monitoring

Blocked emails have no chance of landing in the inbox. Use ZeroBounce's blacklist monitoring tool to keep your IP and domain off blacklists. Our system checks daily against more than 200 email blacklists and notifies you if there's any sign of trouble - so you can get delisted.

No Charge for Unknown Results

Sometimes, certain email addresses can't be verified. They're usually invalid, but we'll mark them as "unknown" and never charge you for them. Also, you should know that ZeroBounce's email verifier returns the lowest number of "unknown" results in the industry. We ran tests against more than 50 competitors.

Free Deduplication

Keeping duplicates in your list is counterproductive. Your email service provider will charge you twice for the same contact. What's more, some people may report you as spam when they get your emails twice. Our email validator removes duplicate addresses in a heartbeat - at no cost.

29 status and sub-status codes

Did you think invalid emails are the only ones hurting your deliverability? ZeroBounce detects 29 types of risky email addresses. These poor-quality contacts prevent you from reaching the inbox and will sabotage your sales. Get granular data results so you can fine-tune and preserve your email hygiene.

Integrations

Email list cleaning should be quick and simple. We integrate with the most popular email, sales and marketing platforms, so you can easily import, validate and export your data. Explore our integrations and get started today by connecting ZeroBounce to the apps you use.

Team Accounts

Need the help of a colleague to keep track of your email verification? You can invite multiple users to your account and assign them different roles. Together you can check your credit balance, analyze results and remind each other when it's time to scrub your email list again.

Round-the-clock support

What if you have a question or concern? ZeroBounce has you covered with 24/7 customer support. Get in touch with us anytime via chat, email or phone. We're always here to guide you and help you get the best use out of our email verifier and deliverability tools.

How ZeroBounce helps companies like yours

Letting bounces spiral out of control is a surefire way to land in the junk folder. Some of our customers realized it before it was too late and came to us for help. See how ZeroBounce turned their email lists around - with minimal effort on their part. "I wouldn't dream of sending a mass email without running my list through ZeroBounce," MediaShares CEO Gene Massey says. What about you?

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Solutions

Solutions

Clean your Email List

Email ValidationEmail Validation
Clean your list and reduce bounces
Email ScoringEmail Scoring
AI insights into email quality
Email FinderEmail Finder
Find verified professional email addresses
Email Activity DataEmail Activity Data
See which emails are the most active

Build Sending Reputation

Email WarmupEmail Warmup
Establish trust with inbox providers
Inbox Placement TestInbox Placement Test
See where emails land before sending
Email Server TestingEmail Server Testing
Check authentication and server setup

Monitor Inbox Health

Blacklist MonitoringBlacklist Monitoring
Detect blacklist issues instantly
DMARC MonitorDMARC Monitor
Detect unauthorized email senders
Deliverability DashboardDeliverability Dashboard
Track deliverability performance in real time
Email deliverability consulting

Email Deliverability Consulting

Get expert guidance to fix deliverability problems and improve inbox placement.

Get Expert Help
Email deliverability consulting
Use Cases

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SUPPORT

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FREE TOOLS

Free Email Verifier
Free List Evaluator
Blacklist Checker
Free DMARC Checker

API

Quickstart
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API Status
Email Validation API
Email Finder API

EMAIL TYPES

Spam Traps
Catch-all Emails
Abuse Emails
Disposable Email
Clean Email
No Reply Emails
Bounced Emails
Invalid Emails

EMAIL DELIVERABILITY

Email Deliverability
Bounce Rates & Deliverability Issues
Anti-Greylisting
Mailchimp Omnivore
Testing Email Deliverability
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WHY ZEROBOUNCE

Email verification that gets you to the inbox

Getting your emails in the inbox isn't easy - but we have your back. By removing bounces and spam email addresses, we help you reach your audience, not the junk folder.

ZeroBounce validates your email list with pinpoint accuracy. We weed out invalid email addresses, spam traps, abuse emails, toxic domains, and catch-all emails so you can be on to making more sales with your campaigns.

That's not all: with ZeroBounce, you get access to an entire suite of email deliverability tools. Our products provide you with full insight into your email and help you optimize it for performance.

Improve your sender reputation and make the most of every email you send.

Try It Free

Get 100 free monthly credits - business or premium domain required

Man sitting at his desk looking at his laptop happy to see his email campaigns are reaching his customers' inboxes, because of the email verification he did with ZeroBounce
  • Airbnb logo, ZeroBounce customer
  • Intel logo, ZeroBounce customer
  • LinkedIn logo, ZeroBounce customer
  • Pwc logo, ZeroBounce customer
  • Strava logo, ZeroBounce customer
  • VistaPrint logo, ZeroBounce customer
  • Samsung logo, ZeroBounce customer
  • CocaCola logo, ZeroBounce customer
  • AAA logo, ZeroBounce customer
  • BBB logo, ZeroBounce customer
  • Ubiquiti logo, ZeroBounce customer
  • Arlo logo, ZeroBounce customer
  • Tata Nexarc, ZeroBounce customer
  • Unilever, ZeroBounce customer
  • Disney logo, ZeroBounce customer
  • HubSpot logo, ZeroBounce customer
  • Sephora logo, ZeroBounce customer
  • Netflix logo, ZeroBounce customer
  • Amazon logo, ZeroBounce customer
  • Airbnb logo, ZeroBounce customer
  • Intel logo, ZeroBounce customer
  • LinkedIn logo, ZeroBounce customer
  • Pwc logo, ZeroBounce customer
  • Strava logo, ZeroBounce customer
  • VistaPrint logo, ZeroBounce customer
  • Samsung logo, ZeroBounce customer
  • CocaCola logo, ZeroBounce customer
  • AAA logo, ZeroBounce customer
  • BBB logo, ZeroBounce customer
  • Ubiquiti logo, ZeroBounce customer
  • Arlo logo, ZeroBounce customer
  • Tata Nexarc, ZeroBounce customer
  • Unilever, ZeroBounce customer
  • Disney logo, ZeroBounce customer
  • HubSpot logo, ZeroBounce customer
  • Sephora logo, ZeroBounce customer
  • Netflix logo, ZeroBounce customer
  • Amazon logo, ZeroBounce customer

We integrate with the platforms you love

Want to validate emails within Mailchimp, HubSpot, Salesforce or other apps you use? You sure can: ZeroBounce integrates with the most popular platforms.

Connect our email verification API to check emails in real time. If you need to clean your email list in bulk, just import, validate, and then export it back to your platform.

View All Integrations
Connect the email verification API to check emails in real-time

Your data's security is everything to us

Protecting your data is on our minds at ZeroBounce, and we can prove it. ZeroBounce is GDPR, SOC 2 Type 2, CCPA and PCI compliant. Furthermore, we partner with reputable cybersecurity companies to ensure we exceed standards.

You'll have great peace of mind knowing your data is safe while we improve it.

  • ZeroBounce is SOC 2 Type II Compliant

    SOC 2
    Type II
    Compliant

  • ZeroBounce is now ISO 27001 Certified

    ISO 27001 Certified

  • ZeroBounce is now HIPAA Compliant

    HIPAA Compliant

  • ZeroBounce is GDPR Compliant

    GDPR Compliant

  • ZeroBounce is Data Privacy Framework (DPF) Compliant

    DPF Compliant

  • ZeroBounce is CCPA Compliant

    CCPA Compliant

A man and woman discussing security and privacy of the best email validator.
How Verndale helps clients reach more inboxes with ZeroBounce

CASE STUDY

How Verndale helps clients reach more inboxes with ZeroBounce

Verndale has trusted ZeroBounce for more than a decade. Learn how the agency keeps email databases clean, lowers bounce rates, and helps clients achieve 99% deliverability.

Read More

RELYCO case study showing how ZeroBounce helps improve email deliverability

CASE STUDY

How RELYCO improved email deliverability and reduced spam submissions with ZeroBounce

After years without an email database cleanup, RELYCO wanted a better way to protect email performance and maintain email list quality. See how the company used ZeroBounce to improve deliverability, lower bounce rates, and streamline email verification inside HubSpot.

Read More

Ikon Technologies case study showing how ZeroBounce helps automate email validation in HubSpot

CASE STUDY

How Ikon Technologies reduced bounce rates and turned email into a lead engine with ZeroBounce

A 15% bounce rate was holding email back and preventing growth. See how Ikon Technologies used ZeroBounce to cut bounces to 1%, improve deliverability, and generate 20–30 leads per week.

Read More

Labyrinth Digital case study showing how ZeroBounce helps reduce bounce rates

CASE STUDY

How Labyrinth Digital eliminated checkout bot bounces with ZeroBounce

Checkout bots were driving bounce rates as high as 60% and hurting abandoned email performance. See how Labyrinth Digital used ZeroBounce to eliminate bounces and send approximately 30% more cart emails — without adding friction at checkout.

Read More

How Transparent Digital Reduced Bounce Rates from 20% to Under 1% with ZeroBounce

CASE STUDY

How Transparent Digital Reduced Bounce Rates from 20% to Under 1% with ZeroBounce

When bounce rates spiked as high as 16–20% for one client, Transparent Digital knew it needed a better way to protect list health. See how the agency used ZeroBounce’s Klaviyo integration to clean lists more effectively and bring bounce rates down to 0.3–0.8% across every account they manage. READ MORE.

Read More

How Escape Game Cleaned 30K Emails in 1 Hour with ZeroBounce

CASE STUDY

How Escape Game Cleaned 30K Emails in 1 Hour with ZeroBounce

A rising bounce rate was threatening The Escape Game’s email workflow. See how ZeroBounce helped the experiential entertainment brand reduce its bounce rate from .47 to .08 — without disrupting the guest experience.

Read More

How Strivacity Streamlined Email Validation with ZeroBounce

CASE STUDY

How Strivacity Streamlined Email Validation with ZeroBounce

When Strivacity needed to validate email addresses at scale, they turned to ZeroBounce. See how our email verification API helped them streamline their workflow and maintain clean data across their customer base.

Read More

Find out how our email verification tool revitalized their email list – and how this link-building agency improved its bounce rate and email outreach results.

CASE STUDY

How The Links Guy Improves Email Bounce Rates with ZeroBounce

When The Links Guy and his team hit a 10% bounce rate, they knew something had to change. With their sender reputation at risk, they couldn't afford to ignore their email list issues any longer. That's when they reached out to ZeroBounce for help.

Read More

Belkins marketing team featured in ZeroBounce case study showing how email validation can improve B2B lead generation

CASE STUDY

How Belkins Masters B2B Lead Generation with Better Data

A high bounce rate can damage your entire email marketing program – and Belkins learned that first-hand. See how ZeroBounce helped the B2B lead generation agency reduce bounce rates by more than 19% and achieve fast, consistent growth.

Read More

MochaBear Marketing expert Elizabeth Jacobi featured in ZeroBounce case study showing how BarCups managed to increase email engagement

CASE STUDY

How BarCups Increased Email Engagement to 78% with ZeroBounce

When the team at BarCups wanted to boost email click rates, they thought changing email service providers would be enough. Learn how their marketing expert at MochaBear Marketing identified an opportunity to increase email engagement with ZeroBounce – by working on their email list quality.

Read More

A woman reads the ZeroBounce case study for the Workplace Depot on a tablet that she’s holding with her left hand.

CASE STUDY

How The Workplace Depot reduced their email bounce rates and stopped spam complaints

The Workplace Depot is one of the largest health, safety, and workplace equipment providers for businesses throughout the United Kingdom. But with a 4.60% bounce rate and one too many spam reports, they knew their data quality was poor. Learn how ZeroBounce helped them clean and segment their data with ease.

Read More

Woman from MediaShares smiling at the results of their ZeroBounce case study.

CASE STUDY

How ZeroBounce helped MediaShares reduce bounces to almost 0%

MediaShares is a marketing and funding consultancy that helps companies market their offerings to investors through email campaigns. The problem is that a 12% bounce rate caused their ESP to cancel their service. ZeroBounce identified and eliminated every toxic email address and got their ESP to reinstate their account.

Read More

A woman from Coldlytics checks her laptop to see her ZeroBounce case study.

CASE STUDY

How Coldlytics delivers accurate data with ZeroBounce’s email validation service

Coldlytics is a company that helps brands identify and build highly-targeted prospects for their email lists. The problem is that most new lists feature as much as 50% invalid addresses. By working with the ZeroBounce API, they remove every harmful address and present 100% reliable data to their customers.

Read More

A woman from Image Source checks her laptop to see her reduced bounce rate from her case study.

CASE STUDY

How ZeroBounce reduced Image Source bounces from 19% to 0.85%

As a leader in office and managed IT tech, Image Source came to ZeroBounce with a 19% bounce rate. Our 99.6% accurate email validation service identified and segregated invalid email addresses, lowering their bounce rate to just 0.85%

Read More

Joana Wiebe of Copyhackers smiles, talking about her ZeroBounce case study results.

CASE STUDY

How Copyhackers keeps a clean email list with ZeroBounce

Joana Wiebe and her team at Copyhackers know a thing or two about email marketing. With ZeroBounce, the company reduced its bounce rate from an impressive 0.36% to 0.22%. “Aside from fewer concerns about bounce rates, the biggest benefit of using ZeroBounce is sending more confidently.”

Read More

How Verndale helps clients reach more inboxes with ZeroBounce

CASE STUDY

How Verndale helps clients reach more inboxes with ZeroBounce

Verndale has trusted ZeroBounce for more than a decade. Learn how the agency keeps email databases clean, lowers bounce rates, and helps clients achieve 99% deliverability.

Read More

RELYCO case study showing how ZeroBounce helps improve email deliverability

CASE STUDY

How RELYCO improved email deliverability and reduced spam submissions with ZeroBounce

After years without an email database cleanup, RELYCO wanted a better way to protect email performance and maintain email list quality. See how the company used ZeroBounce to improve deliverability, lower bounce rates, and streamline email verification inside HubSpot.

Read More

Ikon Technologies case study showing how ZeroBounce helps automate email validation in HubSpot

CASE STUDY

How Ikon Technologies reduced bounce rates and turned email into a lead engine with ZeroBounce

A 15% bounce rate was holding email back and preventing growth. See how Ikon Technologies used ZeroBounce to cut bounces to 1%, improve deliverability, and generate 20–30 leads per week.

Read More

Labyrinth Digital case study showing how ZeroBounce helps reduce bounce rates

CASE STUDY

How Labyrinth Digital eliminated checkout bot bounces with ZeroBounce

Checkout bots were driving bounce rates as high as 60% and hurting abandoned email performance. See how Labyrinth Digital used ZeroBounce to eliminate bounces and send approximately 30% more cart emails — without adding friction at checkout.

Read More

How Transparent Digital Reduced Bounce Rates from 20% to Under 1% with ZeroBounce

CASE STUDY

How Transparent Digital Reduced Bounce Rates from 20% to Under 1% with ZeroBounce

When bounce rates spiked as high as 16–20% for one client, Transparent Digital knew it needed a better way to protect list health. See how the agency used ZeroBounce’s Klaviyo integration to clean lists more effectively and bring bounce rates down to 0.3–0.8% across every account they manage. READ MORE.

Read More

How Escape Game Cleaned 30K Emails in 1 Hour with ZeroBounce

CASE STUDY

How Escape Game Cleaned 30K Emails in 1 Hour with ZeroBounce

A rising bounce rate was threatening The Escape Game’s email workflow. See how ZeroBounce helped the experiential entertainment brand reduce its bounce rate from .47 to .08 — without disrupting the guest experience.

Read More

How Strivacity Streamlined Email Validation with ZeroBounce

CASE STUDY

How Strivacity Streamlined Email Validation with ZeroBounce

When Strivacity needed to validate email addresses at scale, they turned to ZeroBounce. See how our email verification API helped them streamline their workflow and maintain clean data across their customer base.

Read More

Find out how our email verification tool revitalized their email list – and how this link-building agency improved its bounce rate and email outreach results.

CASE STUDY

How The Links Guy Improves Email Bounce Rates with ZeroBounce

When The Links Guy and his team hit a 10% bounce rate, they knew something had to change. With their sender reputation at risk, they couldn't afford to ignore their email list issues any longer. That's when they reached out to ZeroBounce for help.

Read More

Belkins marketing team featured in ZeroBounce case study showing how email validation can improve B2B lead generation

CASE STUDY

How Belkins Masters B2B Lead Generation with Better Data

A high bounce rate can damage your entire email marketing program – and Belkins learned that first-hand. See how ZeroBounce helped the B2B lead generation agency reduce bounce rates by more than 19% and achieve fast, consistent growth.

Read More

MochaBear Marketing expert Elizabeth Jacobi featured in ZeroBounce case study showing how BarCups managed to increase email engagement

CASE STUDY

How BarCups Increased Email Engagement to 78% with ZeroBounce

When the team at BarCups wanted to boost email click rates, they thought changing email service providers would be enough. Learn how their marketing expert at MochaBear Marketing identified an opportunity to increase email engagement with ZeroBounce – by working on their email list quality.

Read More

A woman reads the ZeroBounce case study for the Workplace Depot on a tablet that she’s holding with her left hand.

CASE STUDY

How The Workplace Depot reduced their email bounce rates and stopped spam complaints

The Workplace Depot is one of the largest health, safety, and workplace equipment providers for businesses throughout the United Kingdom. But with a 4.60% bounce rate and one too many spam reports, they knew their data quality was poor. Learn how ZeroBounce helped them clean and segment their data with ease.

Read More

Woman from MediaShares smiling at the results of their ZeroBounce case study.

CASE STUDY

How ZeroBounce helped MediaShares reduce bounces to almost 0%

MediaShares is a marketing and funding consultancy that helps companies market their offerings to investors through email campaigns. The problem is that a 12% bounce rate caused their ESP to cancel their service. ZeroBounce identified and eliminated every toxic email address and got their ESP to reinstate their account.

Read More

A woman from Coldlytics checks her laptop to see her ZeroBounce case study.

CASE STUDY

How Coldlytics delivers accurate data with ZeroBounce’s email validation service

Coldlytics is a company that helps brands identify and build highly-targeted prospects for their email lists. The problem is that most new lists feature as much as 50% invalid addresses. By working with the ZeroBounce API, they remove every harmful address and present 100% reliable data to their customers.

Read More

A woman from Image Source checks her laptop to see her reduced bounce rate from her case study.

CASE STUDY

How ZeroBounce reduced Image Source bounces from 19% to 0.85%

As a leader in office and managed IT tech, Image Source came to ZeroBounce with a 19% bounce rate. Our 99.6% accurate email validation service identified and segregated invalid email addresses, lowering their bounce rate to just 0.85%

Read More

Joana Wiebe of Copyhackers smiles, talking about her ZeroBounce case study results.

CASE STUDY

How Copyhackers keeps a clean email list with ZeroBounce

Joana Wiebe and her team at Copyhackers know a thing or two about email marketing. With ZeroBounce, the company reduced its bounce rate from an impressive 0.36% to 0.22%. “Aside from fewer concerns about bounce rates, the biggest benefit of using ZeroBounce is sending more confidently.”

Read More

ZeroBounce is more than an email validation service.

Many things go into building great email deliverability. Email validation is the first step - but ZeroBounce does much more for you.

Once you check your email list, move on to the additional tools that help your campaigns arrive in the inbox.

Let our email server tester show you if your server is set up the way it should be.

Use our inbox tester to find out if popular email providers will accept your campaign in the inbox.

Add Activity Data to your toolkit to see who your most active subscribers are. That way you can target them with better campaigns.

Meeting between two women and one man discussing the man's business email marketing, spam, subscriber lists and email blacklist alerts.

Frequently Asked Questions

ZeroBounce is an intuitive and easy-to-use email verifier. It's web-based, so you don't have to download any software. Just upload your email list, let ZeroBounce validate it and download your results.



The email verification tool will highlight poor-quality email addresses such as invalid emails, spam traps, abuse emails, catch-all and role-based emails. Removing them from your database will help you improve email deliverability and better connect with your subscribers.



ZeroBounce also checks emails in real time via an API. You can connect the email verification API to any registration and sign-up forms to ensure all the leads you gather are valid and genuine.

Book a Demo with Our Enterprise Team

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Download on App Store