The API is simple and the results are clear. I send an address, get back an is_reachable status, and move on. Good for cleaning a list before it goes into any ESP. Dashboard works fine for one-off checks, and the docs are easy to follow. Review collected by and hosted on G2.com.

Catch-all domains are still fuzzy — you’ll get “risky” or similar instead of a hard yes/no, so some addresses that look fine can still bounce later. That’s more an industry limitation than a product flaw, but worth knowing. Also watch credit usage if you’re verifying huge lists in one shot. Review collected by and hosted on G2.com.

We’ve been experimenting with several email verification services for our platform (e.g., mails.so and others). Interestingly, almost all of them failed to identify functional email addresses—most likely because corporate email providers like Google and Microsoft have flagged their servers/IP pools and reject their requests. With no2bounce, we still see a success rate of over 90% on the emails we’ve tested. Review collected by and hosted on G2.com.

The price is a bit on the high side, and the UX/UI really needs improvement. Integration options feel limited, but the main thing is that it works—and it works well. The support team is great too; they connected with me right away. Review collected by and hosted on G2.com.

I liked their Email Verification service, which is why I visited their website. The UX/UI was good and easy to navigate, and it was very easy to integrate with my product. The quality and performance of the dead email removal were great. Pricing is also in a good range overall and worth buying. There’s also the option of easy chat support, and it integrated easily with my AI platform. Review collected by and hosted on G2.com.

Everything is good, as required. I don’t feel there’s any downside. From my perspective, based on the service I needed, I got exactly that. Review collected by and hosted on G2.com.

I use no2bounce to clean our B2B email marketing database before campaigns and find dead or invalid addresses so we can avoid bounces. I like its accuracy on real contacts; after testing several providers, no2bounce never flagged an active contact as invalid. Setup was very easy: I created an account, uploaded a CSV, and had results in a few minutes. I recommend it because it’s accurate and easy. Review collected by and hosted on G2.com.

I find the catch-all results for company servers confusing. They can say deliverable or undeliverable, so someone reading quickly could delete good contacts or keep bad ones. Review collected by and hosted on G2.com.

I’ve been using this tool regularly to verify email addresses, and it has made my work much easier. It’s quick, simple, and usually gives me the information I need within seconds. I especially like how easy it is to use without having to go through a complicated process. It’s definitely become a useful part of my daily workflow, and I would recommend it to anyone who needs to check email addresses efficiently! Review collected by and hosted on G2.com.

The only downside is that the free credits can run out fairly quickly, especially when verifying a larger number of email addresses. Other than that, I’ve had a very positive experience with the tool. Review collected by and hosted on G2.com.

Budget-Friendly: High accuracy at a fraction of the cost compared to other tools. Review collected by and hosted on G2.com.

Basic Analytics: Lacks deep historical reporting and long-term list health tracking. Review collected by and hosted on G2.com.

What I like most about No2Bounce is that it offers an open-source option and lets me verify email addresses locally. That gives me more control over the verification process, and it helps me manage my email lists in a more secure and transparent way. Review collected by and hosted on G2.com.

It’s not exactly something I dislike, but the open-source version doesn’t come with a user interface, which can be a little inconvenient. That said, if you need one, you can build your own interface, so it still feels like a flexible solution overall. Review collected by and hosted on G2.com.

I find no2bounce to be very straightforward to operate, and it fits perfectly into our lead generation workflow thanks to API integrations. It's dependable for verification and sensibly priced. I appreciate its ease of use, accuracy, and price point. The initial setup was very easy, and it helps me reduce email bounces by identifying and removing invalid or non-existent email addresses, including catch-all emails, which is crucial for my cold outreach campaigns. Review collected by and hosted on G2.com.

Everything works as expected nothing to dislike as of now Review collected by and hosted on G2.com.

so accurate with catch-all emails and cheaper than other alternatives, easy to use, native AI and other integrations Review collected by and hosted on G2.com.

I like everything about the tool, it works perfectly fine Review collected by and hosted on G2.com.

I really like how simple no2bounce is to use, making email validation incredibly easy. The catch all verification feature is especially valuable because it means I can send emails to catchalls without worry, and I've had zero fails. It's straightforward, and I get quick answers, which is great. Moving from Million Verifier was worth it because of the better catch-all verification. The setup was quick and easy, which was nice. Review collected by and hosted on G2.com.

Nothing really Review collected by and hosted on G2.com.