I researched several email verification services and settled on Kickbox - and I'm very glad I did. From creating an account to going live with our integration was completed in a matter of hours. Their pricing is very competitive. The API documentation is very clear and easy to understand. The amount of detail you get about an email address is comprehensive and allows you to decide on a granular level what you are happy to accept e.g. disposable/not. We onboard 1,500+ customers a month, and it's vital that we can contact our customers by email. We've not had a single example where a customer has tried to sign up and a valid email has been rejected (and they would have told us if so), so it would seem the results are very accurate too. I had a question about how to interpret the results, and the support were very helpful and pointed me to one of their API doc pages which answered my questions comprehensively. Review collected by and hosted on G2.com.
Genuinely, I haven't found any downsides or negatives about Kickbox. I wouldn't hesitate to recommend it to anyone looking for a email verification solution. Review collected by and hosted on G2.com.
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