Reach the inbox now with email validation
Verify 100 emails monthly - free
Are email bounces a neverending headache?
The cause is simple - invalid emails. And not just a few - ¼ of your email list.
Sign up for a free ZeroBounce account today and enjoy the best email validation service available:
Eliminate invalid emails with a 99% accurate email validation system
Insights for 30+ email types
Free real-time email validation API
Actual results - not "unknowns"
Military-grade security and privacy to protect your data
The most secure email validation system available
Why wait? Here’s your free email validation check
Enter any email address or list into the free online email validation tool. Experience our 99% accurate email list validation tool first-hand.
What you get with ZeroBounce email software validation
Single / batch email validation system
Enter up to 25 email addresses and detect more than 30 email address types in seconds.
Bulk email validation service
Upload your email lists with a file, the cloud, or one of over 50 popular platform integrations.
Email address validation API
Add one of the world’s top email validation tools to your favorite website, platform, or anywhere else you collect new emails. Supports JavaScript email validation, Python, and a dozen additional programming languages.
Free email deliverability tools
Further enhance your email deliverability with
Email authenticators & monitors
including SPF, DKIM, and DMARC email validation
Blacklist checker
Check if your domain is on an email blacklist so that you can take action
Deliverability calculators
Keep tabs on your open, click, and bounce rates, plus more!
Comprehensive strategy guides
Full tutorials from email industry experts on how to ensure your emails reach the inbox
Why do I need an email bounce checker?
Lower your email bounce rate to 2% or less
Eliminate risks - disposable emails, spam complainers, and spam traps
Maximize deliverability - reach the inbox with every send
Protect your website from attackers with a real-time email validation API
Comprehensive email validation - Understand every email on your list; don’t settle for “unknown” data
The No. 1 email validationⓘA process that determines if an email address uses valid syntax, exists on a given domain, and is configured to receive incoming email messages service for 400,000+ clients
Reviews of the ZeroBounce email validation service
"I would refer ZeroBounce to anyone who needs an email validation service. They are the gold standard for the industry. There's no sense in settling for less when the price is affordable for all stages of growth, there are no contracts, and they have the best platform on the market."
Coldlytics, London
"We were coming up on a big, important launch for our business, and we wanted to ensure we were only sending emails to legit addresses with real people on the other side of them. We couldn’t afford spam complaints, and we didn’t want to negatively impact deliverability in any way. So we used ZeroBounce to clean up our email list"
Copyhackers.com
"At one point, the bounce rate was so high that our ESP canceled our service. Using ZeroBounce’s email verification, we identified the offending fake and invalid email addresses. Our ESP is extremely strict, but once we cleaned our list and they were convinced it was up to date, they reinstated us"
MediaShares, Los Angeles
Frequently asked questions about email validation
Email validation determines the validity of an email address. A valid email address exists and is in use, meaning that your email can be delivered successfully. Conversely, an invalid email doesn’t exist or is inactive, meaning that your email will bounce.
By using email validation in your email marketing, you can identify and remove invalid email addresses to avoid a high email bounce rate and other email deliverability issues.
You can validate an email right now by using the free tool above. Just enter any email address into the email data validation tool and get a result in seconds. If you need to validate more emails, you can check up to 100 emails every month by creating a free ZeroBounce account.
Email validation is necessary as it identifies invalid or high-risk email data that’s present on your email list. Emailing a large number of invalid emails results in a high email bounce rate, which will negatively impact your email domain’s sender reputation. As your reputation declines, your overall email deliverability will decline, meaning that your emails will be more likely to be placed in the spam folder or bounce.
Validating your emails ensures that they are delivered so that you can reach the inbox and maximize engagement with your subscribers.
Email validation and verification work hand-in-hand but focus on different aspects of the email address. Email validation investigates the syntax of the email address to ensure that it contains valid characters and is not malformed in some way. Email verification continues the check by determining if the email actually exists and is in use by the domain through a series of SMTP checks and DNS record lookups. Both processes are necessary to ensure that an email address is safe to use in your email marketing campaigns.
Do you want comprehensive email validation?
Get started with the most accurate email list validation tool available.
Get 100 free monthly email verifications when you sign up with a business/premium domain.