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G2 recognized ZeroBounce
ZeroBounce

By ZeroBounce

4.7 out of 5 stars

How would you rate your experience with ZeroBounce?

ZeroBounce Pros and Cons: Top Advantages and Disadvantages

Quick AI Summary Based on G2 Reviews

Generated from real user reviews

Users find ZeroBounce easy to use, appreciating its quick email validation and reliable results for marketing success. (227 mentions)
Users value the accuracy of ZeroBounce, which effectively filters out invalid emails for improved delivery and sender reputation. (220 mentions)
Users value the data accuracy of ZeroBounce, benefiting from detailed information and effective email validation. (126 mentions)
Users value the versatile email verification methods offered by ZeroBounce for effective email list management. (116 mentions)
Users appreciate the excellent customer support from ZeroBounce, highlighting quick and helpful responses to inquiries. (110 mentions)
Users feel the pricing is excessive for a simple service, especially when utilizing it at scale. (74 mentions)
Users find email management cumbersome due to issues with contact compilation and inaccuracies in catch-all labeling. (32 mentions)
Users face verification issues with ZeroBounce, particularly concerning catch-all emails and duplicate charges for screening. (29 mentions)
Users face insufficient data, particularly regarding repetitive charges for verifying already screened contacts in different searches. (28 mentions)
Users find the slow performance of ZeroBounce frustrating, especially during the login and processing times. (27 mentions)
Users find that costly services can become prohibitive, especially for smaller clients needing frequent validations. (26 mentions)
Users report inaccuracy in ZeroBounce's email validation, finding valid emails marked as invalid, leading to increased bounce rates. (23 mentions)
Users find the limited credits of ZeroBounce challenging, especially when dealing with fluctuating email volumes. (20 mentions)

Top Pros or Advantages of ZeroBounce

1. Ease of Use
Users find ZeroBounce easy to use, appreciating its quick email validation and reliable results for marketing success.
See 227 mentions

See Related User Reviews

AN

5.0/5

"Very useful"

What do you like about ZeroBounce?

ZeroBounce gives me peace of mind....clean lists, better inbox rates, and simple to use. Makes email marketing much smoother.

Verified User
A

Verified User

5.0/5

"great product for email validation"

What do you like about ZeroBounce?

I appreciate how quick and user-friendly the email validation process is. The results are highly accurate, which has significantly enhanced the qualit

2. Accuracy
Users value the accuracy of ZeroBounce, which effectively filters out invalid emails for improved delivery and sender reputation.
See 220 mentions

See Related User Reviews

Verified User
U

Verified User

4.0/5

"Accurate Email Validation"

What do you like about ZeroBounce?

I have been able to protect my domain by filtering out invalid emails from my list.

SA

SATYAM A.

Small-Business (50 or fewer emp.)

4.5/5

"ZeroBounce simplifies the process of verifying large email lists"

What do you like about ZeroBounce?

The best I like about ZeroBounce is its advanced technology scans mailing lists to find probable spam traps and abuse e-mail addresses. By eradicating

3. Data Accuracy
Users value the data accuracy of ZeroBounce, benefiting from detailed information and effective email validation.
See 126 mentions

See Related User Reviews

Verified User
U

Verified User

4.0/5

"Accurate Email Validation"

What do you like about ZeroBounce?

I have been able to protect my domain by filtering out invalid emails from my list.

AN

5.0/5

"I tried multiples nad they have the best accurate results"

What do you like about ZeroBounce?

Interface and number of data i get for the clean-up of emails

4. Email Verification
Users value the versatile email verification methods offered by ZeroBounce for effective email list management.
See 116 mentions

See Related User Reviews

Verified User
U

Verified User

4.0/5

"Accurate Email Validation"

What do you like about ZeroBounce?

I have been able to protect my domain by filtering out invalid emails from my list.

Heros  C.
C

Heros C.

Mid-Market (51-1000 emp.)

4.5/5

"Very easy and friendly tool"

What do you like about ZeroBounce?

It's such an easy interface, where you can face everything you need to warm up your e-mail, validate your list and monitoring your DMARC and blacklist

5. Customer Support
Users appreciate the excellent customer support from ZeroBounce, highlighting quick and helpful responses to inquiries.
See 110 mentions

See Related User Reviews

AG

Anthony G.

Small-Business (50 or fewer emp.)

5.0/5

"Amazing Customer Support"

What do you like about ZeroBounce?

The Customer support for this site was great. I spoke with Crina over the live chat, and they provided me with relevant information very quickly. They

Gene R.
GR

Gene R.

Small-Business (50 or fewer emp.)

5.0/5

"Used Them For Years - Usually Quite Happily"

What do you like about ZeroBounce?

I trust it. I stopped using it for a while, but after trying other services, came back to it. It works. Not perfectly, but better than any OTHER se

Top Cons or Disadvantages of ZeroBounce

1. Expensive
Users feel the pricing is excessive for a simple service, especially when utilizing it at scale.
See 74 mentions

See Related User Reviews

Verified User
U

Verified User

4.0/5

"Accurate Email Validation"

What do you dislike about ZeroBounce?

It is quite expensive, especially at scale.

YD

Yogesh D.

5.0/5

"Legits Email Results"

What do you dislike about ZeroBounce?

Credit Usage comsumption for email finder is alot

2. Email Management
Users find email management cumbersome due to issues with contact compilation and inaccuracies in catch-all labeling.
See 32 mentions

See Related User Reviews

AN

4.0/5

"ZeroBounce - an easy to use, affordable solution to boost email outreach."

What do you dislike about ZeroBounce?

Many emails may be labeled at "Catch All" that are not actually catch all (info@, etc.)

John H.
JH

John H.

Small-Business (50 or fewer emp.)

5.0/5

"Time saver"

What do you dislike about ZeroBounce?

The most difficult part is compiling and preparing all of your contact emails properly - that is something some people do anyway.

3. Verification Issues
Users face verification issues with ZeroBounce, particularly concerning catch-all emails and duplicate charges for screening.
See 29 mentions

See Related User Reviews

AN

4.5/5

"ZerBounce is helpful in many ways!"

What do you dislike about ZeroBounce?

I need to verify this information but I believe when we find our ideal customers in different states yet of the same company, the credits will get cha

Verified User
U

Verified User

4.5/5

"Very reliable service"

What do you dislike about ZeroBounce?

The process of verifying e-mails is a bit slow

4. Insufficient Data
Users face insufficient data, particularly regarding repetitive charges for verifying already screened contacts in different searches.
See 28 mentions

See Related User Reviews

Verified User
U

Verified User

4.0/5

"Extremely user friendly"

What do you dislike about ZeroBounce?

There is no API for email finder, at least it was hard to find.

AN

4.5/5

"ZerBounce is helpful in many ways!"

What do you dislike about ZeroBounce?

I need to verify this information but I believe when we find our ideal customers in different states yet of the same company, the credits will get cha

5. Slow Performance
Users find the slow performance of ZeroBounce frustrating, especially during the login and processing times.
See 27 mentions

See Related User Reviews

Verified User
C

Verified User

Mid-Market (51-1000 emp.)

5.0/5

"Top Notch Email Validation Tool"

What do you dislike about ZeroBounce?

The login process can be a bit slow and clunky. However, once in, I've had no issues, and I love the platform.

DM

Dave M.

Small-Business (50 or fewer emp.)

5.0/5

"Easy to use!"

What do you dislike about ZeroBounce?

It would be great if the process was faster, but I understand that the graylisting process takes time.

6. Costly Services
Users find that costly services can become prohibitive, especially for smaller clients needing frequent validations.
See 26 mentions

See Related User Reviews

Verified User
I

Verified User

4.5/5

"Straightforward Platform"

What do you dislike about ZeroBounce?

It can be costly for large lists, and processing may slow during peak times.

Aaron D.
AD

Aaron D.

3.5/5

"Zerobounce helps us make sure our email directory is valid"

What do you dislike about ZeroBounce?

Have to be careful about usage spikes leading to unexpected costs (this isn't a problem only for ZeroBounce).

7. Inaccuracy
Users report inaccuracy in ZeroBounce's email validation, finding valid emails marked as invalid, leading to increased bounce rates.
See 23 mentions

See Related User Reviews

SK

Sam K.

Small-Business (50 or fewer emp.)

5.0/5

"Integrates nicely with MailChimp and Jotform"

What do you dislike about ZeroBounce?

The Cloudflare app isn't particularly user friendly if someone subscribes to email marketing with a greylisted email address. It says the email addres

Verified User
U

Verified User

5.0/5

"Our Go-To for Email Validation in Growth Marketing"

What do you dislike about ZeroBounce?

I don’t like the email finder functionality. It doesn’t feel as strong or reliable as the core validation features, so we stick to using ZeroBounce ju

8. Limited Credits
Users find the limited credits of ZeroBounce challenging, especially when dealing with fluctuating email volumes.
See 20 mentions

See Related User Reviews

AN

5.0/5

"It was a great experience using Zerobounce."

What do you dislike about ZeroBounce?

Limited free credits and occasional delays

AN

4.5/5

"ZerBounce is helpful in many ways!"

What do you dislike about ZeroBounce?

I need to verify this information but I believe when we find our ideal customers in different states yet of the same company, the credits will get cha

ZeroBounce Reviews (993)

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Reviews

ZeroBounce Reviews (993)

View 1 Video Reviews
4.7
993 reviews
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Joshua N.
JN
Manager - Data Processing & Quality Management
"Effortless Email List Cleanup with Quick Support"
What do you like best about ZeroBounce?

I use ZeroBounce primarily for cleaning our email lists and contact databases, and I appreciate how it helps us identify outdated information and protects our domain reputation by avoiding the emailing of harmful addresses. The intuitive, easy-to-use interface makes processing straightforward, while the rapid turnaround speed ensures that I get instant results for single or small batches of emails, allowing me to distinguish correct emails from incorrect ones promptly. Moreover, the platform's results are incredibly accurate, which is crucial for maintaining the quality of my email communications. The customer support is exceptional; they are quick to respond and highly effective in solving any issues I encounter, making my experience smooth and efficient. Additionally, I found the initial setup to be very easy, with ample online documentation to guide me through its features. Overall, the reliability and speed of ZeroBounce significantly enhance my email management processes. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

I dislike the issue with greylisted emails as it causes delays. When I submit greylisted emails in a list, it takes time to produce results. Moreover, if I submit them through an individual search, it does not return a result. Review collected by and hosted on G2.com.

AN
"ZeroBounce Review for Marketers: Does It Really Improve Deliverability?"
What do you like best about ZeroBounce?

What I like best about ZeroBounce is its high accuracy and reliability in identifying invalid, spam-trap, and risky email addresses. The platform is extremely easy to use, the reports are detailed, and the verification process is fast. Their built-in features—like AI email scoring, real-time validation, and activity data—make it much easier to maintain a clean email list and improve deliverability. Overall, it saves time, reduces bounce rates, and helps campaigns perform better. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

Pricing can be high for large lists, especially compared to budget-friendly competitors Review collected by and hosted on G2.com.

Response from Corina Leslie of ZeroBounce

Thank you for sharing your experience.

We’re thrilled to hear that ZeroBounce has helped improve your email deliverability, reduce bounce rates, and save you time. We understand that pricing can be a consideration for larger lists, and we’re always looking for ways to provide value for all our customers while maintaining the high level of accuracy and reliability you’ve come to expect.

We appreciate your support and feedback.

AP
Marketing Automation Manager
Mid-Market (51-1000 emp.)
"A Reliable Partner + Essential Tool in Deliverability and Email Validation"
What do you like best about ZeroBounce?

ZeroBounce has been a game-changer for our email marketing and marketing automation strategy. As a team that manages communications for multiple franchises and venues, email deliverability and audience trust are critical to our success. ZeroBounce’s validation tools have given us the confidence that the emails we send are reaching real, engaged inboxes.

One of the biggest advantages we’ve seen is when targeting past buyers for upcoming events. With ZeroBounce, we know we’re sending to clean, valid addresses, which not only improves engagement but also protects our sender reputation. That extra layer of assurance has helped us execute campaigns with greater precision and impact.

Beyond validation, ZeroBounce is intuitive, quick, and integrates seamlessly into our workflow. It’s a solution we trust, and it has become a key part of how we approach high-volume and high-stakes campaigns. I would highly recommend ZeroBounce to ANY team that relies on email as a primary channel for audience engagement. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

I don't have any dislikes! I'm obsessed with the product and its variety of tools as well as the confidence it gives us in executing the types of campaigns we do when ticket sales slump. Review collected by and hosted on G2.com.

Response from Corina Leslie of ZeroBounce

Thank you for such a fantastic review, Anne-Marie! We’re thrilled to hear ZeroBounce has become an essential part of your strategy and that it’s helping you reach real inboxes with confidence. It’s especially great to know our tools support your high-volume campaigns, protect your sender reputation, and make it easier to re-engage past buyers successfully.

We’re honored to be your trusted partner in deliverability and excited to continue supporting your success!

Joshua M.
JM
CEO & Founder
"Great Experience"
What do you like best about ZeroBounce?

ZeroBounce’s validation accuracy is exceptional. It has consistently helped us protect our sender reputation, reduce bounce rates, and keep our lists clean without slowing down our workflow. The platform is intuitive, fast, and integrates seamlessly into our processes. Their data enrichment features and confidence scoring have allowed us to make smarter decisions before pushing contacts into our email ecosystem. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

While ZeroBounce is highly effective, the only area I’d like to see improved is the clarity around certain validation results, especially the “unknown” and “catch-all” statuses. These categories can occasionally require additional manual review or testing on our side to determine how to handle those contacts with confidence. A bit more transparency or guidance in those segments would make an already strong platform even better. Review collected by and hosted on G2.com.

Response from Corina Leslie of ZeroBounce

Thank you so much for sharing such a thoughtful and detailed review. It means a great deal to hear how much ZeroBounce has helped your team protect sender reputation, keep lists clean, and improve deliverability across your email programs. We're especially glad the platform’s speed, accuracy, and enrichment tools have become a meaningful part of your workflow.

We also truly appreciate your feedback about “unknown” and “catch-all” results. Those classifications can be tricky across the entire industry, and insight like yours helps guide where we focus next. To help in the meantime, we’ve included a resource that sheds more light on how catch-all emails work and how to approach them with confidence. We're always working to bring more clarity, transparency, and guidance to those categories so you can move even faster with full confidence.

It’s wonderful to hear about the measurable improvements you’ve seen in engagement and inbox placement. Knowing ZeroBounce is helping drive stronger ROI is exactly what we aim for.

If there’s ever anything more you’d like to see or if you need help interpreting results, our team is always here (24/74) and happy to assist.

See how ZeroBounce improved
AN
"Exceptional Email Validation & Deliverability Tool"
What do you like best about ZeroBounce?

ZeroBounce stands out for its exceptional accuracy in email validation. It consistently identifies risky, invalid, or low-quality email addresses with precision, which directly improves our deliverability and campaign performance. I especially appreciate the real-time validation API, the detailed data enrichment, and the user-friendly dashboard that makes bulk list cleaning fast and effortless. The platform is reliable, intuitive, and backed by a highly responsive support team. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

While ZeroBounce is a strong and reliable platform, there are a few areas that could be improved. The pricing can feel a bit high for smaller businesses or startups that need frequent list cleaning. Some of the more advanced insights and features require additional credits, which adds to the overall cost. The dashboard is powerful, but new users may need a little time to understand all the options and reporting tools. Review collected by and hosted on G2.com.

AN
"easy and accurate"
What do you like best about ZeroBounce?

What I like best about ZeroBounce is its accuracy and reliability in cleaning and validating email lists. The platform consistently identifies invalid, spam-trap, and catch-all emails, which helps maintain sender reputation and improves overall campaign deliverability. Its interface is simple, fast, and easy to navigate, making the process seamless even for large datasets. The added features—like email scoring, activity data, and real-time API validation—provide deeper insights that go beyond basic verification. I also appreciate the strong security standards and GDPR compliance, which ensure data is handled safely. Overall, ZeroBounce delivers consistent, dependable performance for email hygiene. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

What I dislike about ZeroBounce is that the pricing can feel high for large volumes, and the dashboard occasionally feels limited in analytics depth. More flexible plans and richer reporting would help. Review collected by and hosted on G2.com.

Response from Corina Leslie of ZeroBounce

Thank you for your thoughtful review! We’re really glad to hear ZeroBounce has been accurate, reliable, and helpful in protecting your sender reputation and improving your campaign performance. We appreciate your note on pricing for large volumes. You may want to take a look at ZeroBounce ONE, which brings all of our tools together in one plan and offers better overall value for frequent or high-volume use: https://www.zerobounce.net/zerobounce-one.

AN
"Cleaning things up and Reactivating Old Leads"
What do you like best about ZeroBounce?

I've appreciated the ease of using the platform to help us on the email clean up journey. We have a lot of older leads and contacts in an industry that has a lot of turn over, so being able to upload a spreadsheet and turn around our query quickly has been a huge help. The data has been accurate and I like the level of clarity about our emails. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

The only downside is I wish I could bulk download my spreadsheets after they've all been validated instead of doing them individually. It's a minor thing though. Review collected by and hosted on G2.com.

Response from Corina Leslie of ZeroBounce

Thank you for your review! We’re really glad ZeroBounce has made it easier to clean up older leads and keep your data healthy as you re-engage contacts. We appreciate your note about bulk downloading results and will pass that along to our team as we work on improving the workflow.

AN
"Accurate and fast email validation at scale"
What do you like best about ZeroBounce?

The accuracy at scale is what stands out most. We work with very large institutional contact datasets, and ZeroBounce consistently identifies invalid and risky emails without slowing down our workflow. The bulk processing and API options are straightforward, fast, and easy to integrate, which makes it a core part of our data quality pipeline. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

Not much its a great tool and we enjoy the people we work with Review collected by and hosted on G2.com.

AN
"a good tool for checking emails"
What do you like best about ZeroBounce?

What I like best about ZeroBounce is how accurate and easy to use it is. The platform quickly cleans and verifies email lists, helping reduce bounces and improve deliverability. It’s straightforward, reliable, and gives clear results, which makes managing email campaigns much easier. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

is that the verification process can feel a bit slow with larger lists, and some features are only available on higher-priced plans. While the results are reliable, the cost can add up if you need to run frequent or high-volume checks. Review collected by and hosted on G2.com.

Response from Corina Leslie of ZeroBounce

Thank you for taking the time to share your experience.

We’re glad to hear that ZeroBounce has helped improve your deliverability, reduce bounces, and make managing your email campaigns easier. We understand that working with larger lists can sometimes feel slow, and that certain features are only on higher-tier plans. We’re always looking for ways to improve performance and provide even more value to our customers.

Your feedback is greatly appreciated.

AN
"ZerBounce is helpful in many ways!"
What do you like best about ZeroBounce?

Upsides of ZeroBounce is that it is well developed in terms of integrations and pretty great at finding deliverable emails and working phone numbers of potential clients. Review collected by and hosted on G2.com.

What do you dislike about ZeroBounce?

I need to verify this information but I believe when we find our ideal customers in different states yet of the same company, the credits will get charged even for people that we already screened for. In our case we are looking for contractors nationwide. When we find John Doe from ABC Construction, and under different searches find him again, when we clean the data, I believe we get charged to run the same information for verification. For us, its a numbers game.. with hundreds of thousands of contractors we do not have time to remove existing contacts in the database (something we should do) before requesting another cleaning on a new list. Anyway.. thank you for coming to my ted talk. great product regardless. Review collected by and hosted on G2.com.

Response from Corina Leslie of ZeroBounce

Thank you for your detailed review! We’re glad to hear ZeroBounce has been helpful in finding valid emails, improving outreach, and supporting your growth efforts. We appreciate your note on duplicate verifications. Our team is always exploring ways to make data processing more efficient, especially for high-volume users like you.

We’re grateful for your trust and happy to know ZeroBounce adds value to your business!

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