AN
Verified User in Information Technology and Services
"The most reliable email validation tool i have used"
5/5
What do you like best about ZeroBounce?

The results are very reliable. I use other tools as a waterfall filter for emails for outreach for my SAAS product. But zerobounce has been the most reliable with the least/minimal bounce rate. So i love this product Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

nothing to dislike as of now. The catchall verification takes some time but thats understandable because of the nature of the verification. Review collected by and hosted on G2.com.

AN
Verified User in Marketing and Advertising
"Zero bounce is reliable and I've used it for years"
5/5
What do you like best about ZeroBounce?

Your bounce is quick. You can always check if the email address is valid and instantly... Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

Sometimes using ZeroBounce makes it difficult to determine if the user is actually using an email, as it is often listed as catch-all. Review collected by and hosted on G2.com.

AN
Verified User in Consumer Goods
"reliable service."
5/5
What do you like best about ZeroBounce?

Super easy to use and reliable. It cleaned my email list perfectly and helped me reduce bounce rates instantly. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

I wish the pricing packages were a bit more flexible for smaller frequent batches, but overall it's great value. Review collected by and hosted on G2.com.

AN
Verified User in Market Research
"Reliable Email Validation Tool That Improves Deliverability"
4/5
What do you like best about ZeroBounce?

The most valuable part is the accuracy and speed of the validation, especially when working with large datasets. It saves time and improves overall campaign performance. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

Credit usage can add up quickly for large datasets, so it requires some planning to manage costs efficiently. Review collected by and hosted on G2.com.

AN
Verified User in Computer Software
"One of the best & fast in email validation"
4/5
What do you like best about ZeroBounce?

What I like most about ZeroBounce is how easy it is to plug in and forget. We use it inside Clay, and it just works - every email we find gets verified automatically before going out. It’s fast, reliable, and honestly saves us a lot of trouble. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

Sometimes we notice a bunch of emails still go through even when they’re not fully safe or verified. It’s not a big issue most times, but would be great if the accuracy was a bit tighter. Review collected by and hosted on G2.com.

Response from Corina Leslie of ZeroBounce

Thank you for your review! We’re glad to hear ZeroBounce integrates smoothly into your workflow and helps you maintain low bounce rates and strong domain health. We appreciate your feedback on accuracy! Our team is always fine-tuning our systems to make verification even more precise.

AN
Verified User in Retail
"very smooth and transparent"
4.5/5
What do you like best about ZeroBounce?

the different phases of validation it provides and helps navigate in the most optimal ways possible.

it helps provide a clearer picture of the amount of data used and remaining and the credits utilised. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

so far so good, no issues in validation is needed Review collected by and hosted on G2.com.

Alex M.
AM
Alex M.
Events Services
"Works fast and helps keep our mailing lists clean"
5/5
What do you like best about ZeroBounce?

I like how accurate and fast ZeroBounce is. It helps me clean large email lists quickly and improves the overall deliverability of my campaigns. The interface is simple, and the reports are easy to understand. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

Sometimes the credits run out faster than expected, especially when checking large lists, and the jump between pricing tiers feels a bit steep. It would be great to have more flexible top-up options. Other than that, the platform works really well. Review collected by and hosted on G2.com.

Response from Corina Leslie of ZeroBounce

Thank you for your review! We’re happy to hear ZeroBounce has become an essential part of your workflow, helping you clean lists quickly and boost deliverability. We appreciate your note on pricing flexibility. If you’re looking for more value and convenience, you might want to explore ZeroBounce ONE, our subscription that bundles all of our tools under one plan: https://www.zerobounce.net/zerobounce-one

Jess K.
JK
Jess K.
Marketing Consultant
Small-Business (50 or fewer emp.)
"After researching my options..."
5/5
What do you like best about ZeroBounce?

Comparing it to other tools with the SAME high validation accuracy AND API integation capabilities, ZeroBounce was the best bang for my buck. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

Honestly, it's a great tool. For me, it's just a cost I don't need at the moment. But I'd absolutely upgrade my account in the future. Review collected by and hosted on G2.com.

Craig H.
CH
Craig H.
Director of Marketinf
"Most Accurate Thorough Verification We've Found Yet"
5/5
What do you like best about ZeroBounce?

ZeroBounce has the most thorough verification vs other tools we've used. They can even handle complex catch-all emails which are always tricky. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

The pay-as-you go is clunky and they of course are trying to encourage you to move into a subscription but that just doesn't make sense for our model. It's not too bad though. Review collected by and hosted on G2.com.

Verified User in Staffing and Recruiting
AS
Verified User in Staffing and Recruiting
"Reliable Everyday Email Validation for Our Admin & Support Team"
5/5
What do you like best about ZeroBounce?

As an admin/support team, ZeroBounce has become part of our daily workflow. We use it regularly to validate email lists, reduce bounce rates, and keep our CRM clean. The platform is intuitive, fast, and reliable, which makes everyday tasks easier and more efficient. It’s helped us improve email deliverability and save time by quickly identifying invalid or risky addresses. Overall, ZeroBounce has been a dependable tool that supports our day-to-day operations and helps us maintain high data quality standards. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

Occasional Processing Delays. During peak times, list processing can be slower than expected. Review collected by and hosted on G2.com.