Clean your email list database with our free email checker and verifier

Are fake or invalid email addresses causing you to lose money?

Nearly 69% of businesses invest time and money on email marketing. ¹ It’s easy to see why: The return on investment for email marketing is $36 for every $1 spent. ² That’s a 3,500% return.

That profitability, however, can only be realized if your emails actually get delivered, let alone read. Unfortunately, studies show nearly 16% of all emails go missing or get caught by spam filters.

Avoid the spam folder and bounces with an email checker

Are your emails landing in the spam folder?

Some of these emails may indeed be spam — and the email recipient marks it as such.

Other times, hard-working marketers like yourself might have purchased an email list that — unknowing to them — contained spam traps (fake emails used to catch spammers).

Many email lists available for purchase are compiled by taking email addresses found on the web. That means a real person never opted in to hear from you.

Internet service providers and blacklist providers seek to prevent spammers from committing fraud. They put fake email addresses in publicly accessible digital spaces (like blogs and forums) to catch and block spammers.

Unfortunately, if you purchased a list with a spam trap, your emails could eventually get routed directly to spam or blocked entirely.

Other times, your email list may simply be outdated. People get married and change their last names in their email addresses. Or they switch jobs, and their email address becomes invalid.

What happens if I send an email to a fake address?

Emails to fake email addresses lead to one thing - a bounce.

More bounces will hurt your sender reputation and ultimately destroy your email deliverability. Our email checker allows you to spot fake addresses so that you can remove them from your email list.

Fake addresses can pop up for a variety of reasons.

Some can be simple input errors that lead to misspellings or incorrect email syntax. Users might also intentionally enter a fraud email address to protect their privacy but still get access to your content.

Disposable email addresses also pose a problem as they are valid at the time of entry on your sign-up forms. It’s enough to get by an email checker API, but it quickly self-destructs and becomes invalid. Thus, the cycle of bouncing messages quickly resumes, and your sender score continues to suffer.

How ZeroBounce’s free email verifier can help

ZeroBounce’s free email check and tester allows you to:

Clean up your current list in bulk. Already have an email list? Use the email checker to validate up to 100 email addresses - free - every month.

Check new email addresses as you go. Verify email addresses as they enter your forms with the email checker API to ensure they’re valid, so you reach a real person every time.

The mail you send costs money. Check email regularly and save more.

Email service providers typically charge by the number of emails in your list.

If your emails go undelivered, unopened or to spam, you effectively spend more for nothing, drastically reducing your email marketing ROI.

100 free credits to check email every month.

Keep your list clean! Use our bulk email checker to get ahead.

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Get 100 free monthly email verifications

Benefits of ZeroBounce’s email verifier

You can’t afford to have your emails sent to spam or blocked, jeopardizing your sender reputation. Whether you stick with this free email verifier tool or make the most of our system by checking your entire email list in bulk, a working list of current contacts is critical to the success of your marketing efforts.

Some of the benefits of cleaning up your list include:

Reduced bounce rate and boosted mail inbox placement

Weed out invalid emails from your list with our bulk email verification system. It also removes temporary addresses that will otherwise bounce.

What’s more, the ZeroBounce API prevents these threatening emails from getting into your database in the first place. Reduce bounces and avoid emailing invalid addresses in one swift motion.

A mail tester can eliminate spam complaints

ZeroBounce finds and separates abuse emails from your database. Abuse emails belong to people who often flag messages as “spam,” which can hinder your inbox placement.

Using our API, you can stop abuse emails in their tracks and avoid the risk of spam complaints.

Use a mail verifier to improve your sender reputation

Your sender reputation impacts your email deliverability and email marketing performance.

By removing bounces, spam traps and other risky emails, ZeroBounce improves your reputation and helps you stay in good standing.

An email checker provides better email engagement

Open and click-through rates are essential to your email marketing and sales outreach. Improve deliverability and boost engagement with our free email verifier tool.

Once your emails are verified, open rates and click-through rates often see a boost, which means higher conversions.

Email checkers keep lists clean for better audience insights

ZeroBounce is more than an email verifier. Apart from pruning your list, it adds useful information to it.

Learn your subscriber’s name, gender and location (where available) and segment your list for laser-focused campaigns. This feature is included in your service — no extra charge!

Remove duplicate emails with an email verifier

Another great (and free) feature you can enjoy when cleaning your list in bulk with us is the removal of duplicate email addresses.

This saves you money as you won’t be paying your email service provider to email the same person twice. Also, it protects your sender reputation by reducing the risk of spam complaints.

Who uses ZeroBounce’s email verifier?

At ZeroBounce, we serve more than 250,000 customers, made up of brands and businesses of all sizes. Like you, they rely on email to engage with prospects and customers. Valid email addresses are essential to getting your message to the right place.

Marketers need a bulk email checker to improve email automation

Every email represents an investment of time, talent and money. Copywriters work tirelessly to craft the right message. Graphic designers develop eye-catching designs that inspire action. Marketers deploy strategies to reach the right people. None of those efforts mean anything if the email is undeliverable or sent to spam.

Cleaning your email database allows you to get real, actionable insights from your loyal audience. Eliminate the bad data and start making those campaigns work toward your marketing goals.

Sales teams check email lists for reliable lead information

Proactively verifying your email list supports your team’s success. Your messages get delivered to real email addresses — and real people. And those people can turn into real leads and loyal customers.

B2B (business to business) brands need an email verifier tester for a clean database

Connecting with and converting new leads in a digital B2B market is tough. That’s why you can’t afford to take a hit on your sender reputation or waste time reaching out to fraudulent email addresses.

ZeroBounce works with some of the biggest B2B companies around the globe, like Google, HubSpot and Amazon, to ensure that they can complete accurate email checks and deliver messages to real contacts that provide results.

Here are some ways professionals use our free email checker tool

Proof of concept - learn how clean email list data boosts performance

Email verification technology only improves your email list if it’s accurate. ZeroBounce guarantees 99% accurate results. If you’re evaluating email verification services, use our free email checker to get a glimpse into how we can help you achieve your goals.

Grow your small business - improved automation and greater customer reach

Entrepreneurs rely on connections. Check each email’s validity as you grow. It’s the best way to ensure every email address belongs to a real potential lead — without spending big bucks.

Prospectors can maintain privacy with email address lookups

You found the perfect prospect on LinkedIn. Is the email address listed in their profile still valid? Type it into the free email verifier tool at the top of the page, and ZeroBounce will tell you whether you’re good to go or need to keep searching.

Keep an active list of editors

A public relations pro has no more significant ally than their digital Rolodex. Is your current email list of editors valid? Before you add them to your database, check them on our free email verifier tool. Now, you’ll know your pitch was sent to a real human being — and you increase your odds of hearing back.

Avoid syntax errors, fraud, blacklists and spam

No one’s perfect, but simple typos in an email address can lead to negative consequences. Any time a mistyped or invalid address enters your list, you risk getting friendly with the spam folder.

Other harmful addresses prey upon those overconfident companies that run email campaigns without regularly checking their database. Those companies end up emailing spam traps and known spam complainers.

Use ZeroBounce’s email verifier to stay proactive in your efforts for a cleaner email list. Avoid suspensions, low engagement and undelivered messages by including us in your marketing repertoire.

The best email check and list cleaning starts with ZeroBounce

  • Get 100 free monthly email verifications

Pay-as-you-go vs. monthly subscription plans

ZeroBounce offers two payment plans for those who want to use our email checker and tester for a high volume of email contacts.

Monthly subscription plans allow you to set your pace and automatically refresh your email verifier credits every 30 days. Plans allow you to start at 2,000 email checks, with plans scaling for even the most prominent enterprise’s needs.

Pay-as-you-go is the answer if you prefer to avoid automated payments or try your own email check and cleaning schedule. Purchase as many ZeroBounce credits as you need when you need them, and refill when you’re ready.

Validating your email list is essential. That’s why we offer a variety of plans to help you find one that fits your needs.

How is our email validation better than other bulk email checkers?

ZeroBounce offers superior email validation compared to services like NeverBounce, and, with an industry-leading 99% accuracy. We know the importance of connecting with valid contacts, so we only deliver validation results you can trust.

We also enhance your email checker experience by offering valuable insights regarding the person’s email behaviors. You can add Activity Data to your validation reports and score those addresses on a scale from 1-10 to determine who’s most likely to engage with your next campaign.

Our email checker also offers insights into your catch-all email addresses. Those are company email addresses that initially served to catch misplaced emails but now often serve as a haven for spam. We score those catch-all addresses to find active ones, helping you determine which are worth messaging and which you should avoid.

Finally, ZeroBounce offers superior data protection, meaning that your email and customer data is always secure. We can never view your uploaded data and supply your results directly to you with an encrypted key. We also automatically delete your uploaded data after 30 days to eliminate unnecessary risk.

ZeroBounce is AICPA, SOC 2 Type 2 and ISO 27001 certified. We also comply with state, national and international compliances, including CCPA, GDPR, India DPDP and Privacy Shield, making us the most trustworthy email validation service available.

Are you ready to improve email deliverability?

The ZeroBounce free email checker is always here when you need it.

But if you’re ready to improve your email deliverability and campaign performance, we’re here to help.

Start today with our email validation service by creating your account. Free users will get access to 100 ZeroBounce credits every month to use toward checking your email database. If you need to scale higher, top off your credit balance with our pay-as-you-go plan, or keep your credits waiting every month with a new subscription. You can cancel anytime; we’re always here to assist you 24/7.

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Frequently asked questions

The ZeroBounce email checker includes your own API key, allowing you to integrate our verifier service with your favorite platforms, websites and landing pages.

Depending on your email service, you can rapidly import your list for verification or check emails within their native platform. Check out our full list of supported integrations.

Our free email verifier tool will never cost you anything. Feel free to enter as many of your contacts’ email addresses as needed to find out which are valid or invalid.

If you want to check emails in bulk, fill in social data, discover Activity Data, score your most active contacts, or use our real-time API, you’ll need ZeroBounce credits. Every email address you need to check consumes one credit, and your purchased credits will never expire.

For anyone sending out email campaigns regularly, we recommend verifying your email contacts at least once a quarter (every 3-4 months). This helps you stay on top of any new leads you may obtain and identify previously valid addresses that are now unused or dormant.

If you use our email verification API, you may be able to extend your cleaning schedule to once every six months. A real-time email checker helps stop fake or fraudulent addresses like disposable emails at the gate so that they never enter your email database.

Email verification is the process of determining if an email address is valid and active or invalid.

Valid addresses exist and are currently in use on the associated email server. Invalid addresses do not exist or follow the incorrect email format.

No. Whenever you send an email message, the sending server first delivers an EHLO message. This is a Simple Mail Transfer Protocol (SMTP) command that requests confirmation of the user identity on the recipient domain. Once it confirms the identity, it then delivers the message.

When verifying an email, the verification tool only sends the EHLO message.

An API (Application Programming Interface) is an integrated software that allows two applications to communicate. A real-time email checker API is an integration that allows you to verify emails as someone enters them into your sign-up forms.

Your email verification service should provide you with an API key so that you can install the email checker API on your website or landing pages. This proactively keeps email lists clean by blocking invalid addresses.

Yes. The email verifier identifies valid and invalid addresses, as well as other several risky email types, including spam traps.

You can boost your inbox placement with the following tactics:

  • Eliminate invalid, risky email addresses to keep bounce rate low
  • Get rid of known complainers to reduce your spam complaint rate
  • Remove inactive subscribers from your list
  • Keep a consistent sending schedule
  • Keep content on target
  • Avoid spammy words or overly-promotional content
  • Provide users with a way to unsubscribe

Ready to start reaching real people — and getting a response?

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Get 100 free email verifications each month