WhoisXML Email Verification API vs. ZeroBounce

We use WhoisXML Email Verification API for the additional value it provides to our corporate email security, and we recommend that most organizations do the same. Disposable email services may help protect the privacy of their users, but in the corporate setting, receiving emails from these domains may not be safe. So, aside from flagging emails from domains categorized as spam, we wanted our spam filtering system to be stricter and include disposable email addresses.

ZeroBounce is ideal for maintaining and improving your email deliverability. It's great for accurately processing large lists that contain many domains (not just the big box ISPs) and rooting out complainers. These results have the potential to reduce bounces before they happen, and keep your domain/IP reputation in good standing. ZeroBounce while exceeding expectations in email list cleaning, I would not recommend purchasing an email list, running it through their system and expect to be inboxing right out of the gate. Your deliverability is only as good as your list quality no matter how "clean" you think your list is.

Incentivized

• WhoisXML Email Verification API obtains its disposable email detection capabilities from a disposable email domain database that monitors most disposable email providers regularly.
• WhoisXML Email Verification API is compatible with most spam filtering solutions and other email security systems. It is also available as a Splunk application, so compatibility wasn’t an issue for us.

• ZeroBounce provides us with not only valid emails but also separates the catch all addresses
• Their security is probably the best in the world
• Their support is exceptionally responsive
• They are more economical than our previous provider

Incentivized

• We had to avail ourselves of the custom plan because we have a pretty large user base, and each user receives hundreds of emails per day. We were able to come up with a reasonable agreement, in any case.

• Adding properties in callback like MailboxProvider
• Increasing the rate limiting API
• I think a blacklist ZeroBounce's end, with a chance to revalidate those emails.

Incentivized

ZeroBounce is very simple to use. The interface is very user friendly. We didn't have to undergo any training or watch any instructional videos when we first logged in. There are little pop ups to highlight different features and explain certain things, but overall it's just upload a .csv and wait for the results. It then combines the results into one clean PDF breakdown, but it also gives more in-depth feedback through separate Excel sheets.

Incentivized

Prompt and professional support.

We have used ZeroBounce for about 18 months and it works flawlessly. We are able to get all of our questions/issues answered immediately. Felt very comfortable with the product immediately - used their web site which walked us through it and were able to get up and running within minutes. I really haven't had any issues that required support.

Incentivized

ZeroBounce has better brand value and brand recognition compared to competitors in market. NeverBounce may still do a little better compared to ZeroBounce just because its a ZoomInfo company and has ZoomInfo data to back it up. Pricing need to be improved. Still we chose ZerBounce because it was best in business for email validation.

Incentivized

• Our deliverability is approximately 99% on most emails we send thanks to ZeroBounce
• We've had an increase in our domain reputation
• The price is affordable and similar to other tools that do the same, but are not as accurate as ZeroBounce

Incentivized