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Fast, Reliable, & Accurate Email Verification

Boost your email campaign success and protect your sender reputation with Kickbox. Efficiently prevent hard bounces, ensure email delivery, and block fraudulent or incorrect sign-ups.

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Drag & Drop Simplicity: Quickly upload and cleanse your email lists.
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Real-Time API: Instantly catch and correct erroneous sign-ups.
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Flexible Pricing: Only pay for what you need, with no hidden fees.

Your first 100 verifications are free!

Get Started Free
Boost your email deliverability with Kickbox

Over 150,000 Senders Trust Kickbox

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Email List Verification

Email List Verification Made Simple

Quickly enhance deliverability and maintain a healthier mailing list with our advanced list verification tools, backed by our 95% Deliverability Guarantee.

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Effortless Import: Easily upload your list via CSV or directly from your email provider.
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Customized Cleaning: Isolate and remove invalid, fake, or risky emails based on your risk tolerance.
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Seamless Integration: Use Kickbox with your existing email tools for consistent validation.
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Easy Verification API

Block fake email addresses effortlessly. Enhance your ROI and minimize risk by verifying emails in real-time during purchases, registrations, or contact forms, preventing fake signups and improving conversions.

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Real-Time Verification: Instantly validate emails at the point of entry to maintain database integrity.
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User-Friendly Correction: Allow visitors to correct typos on the spot, boosting conversion rates.
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Quick and Clear Integration: Integrate Kickbox with your app in just a few minutes using our straightforward documentation.
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Kickbox email verification api
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No Spammers = Superior Accuracy

No Spammers = Superior Accuracy

Kickbox champions ethical email practices by strictly prohibiting the use of purchased or scraped email addresses. We embody the principle that "with great power comes great responsibility", ensuring our verification process is both effective and ethical.

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Zero Tolerance for Non-Opt-In Data: We refuse service to those using non-consensual data and decline revenue from list buyers, prioritizing data integrity over profit.
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Reliable System, Cleaner Network: Our stance against unethical data practices enhances the reliability of our service and ensures higher deliverability rates for your campaigns.
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Increased Accuracy: With a cleaner Kickbox network, your verified emails have a higher chance of successfully reaching recipients, improving your campaign's impact.

By filtering out non-opt-in data, Kickbox not only maintains the highest level of accuracy through a consent-based ecosystem but also enhances trust and reliability for our users.

Elevating Email Verification

Kickbox is revolutionizing the email verification process, combining cutting-edge technology with unparalleled service and integrity.

Champion of best practices

Champions of Best Practices

Kickbox rigorously complies with GDPR and CCPA, and actively participates in anti-spam communities like M3AAWG, showcasing our dedication to ethical email practices and robust data protection.

Allied with the best

Trusted Industry Partnerships

Esteemed by top Email Service Providers, Kickbox is recognized for its exceptional expertise and reliability in email verification, reflecting our strong industry reputation and proficiency.

Pure transparency

Pure Transparency

What you see is what you get. Our straightforward, pay-as-you-go pricing, free of hidden fees, along with a strong record of client satisfaction, highlights our dedication to transparent and fair practices.

Proprietary Sendex score

Proprietary Sendex™ Score

Get unique insights to improve your email program quality. Kickbox’s proprietary Sendex™ Score is a metric that provides additional quantitative insight into the overall quality of the email addresses verified by Kickbox.

User-Friendly Experience

User-Friendly Experience

Our platform offers an intuitive, easy-to-navigate interface, making email verification straightforward and accessible for all users.

Dedicated Customer Support

Dedicated Customer Support

Our responsive and caring team is always ready to assist and provide timely support, setting us apart in a landscape where others may fall short in responsiveness.

What Kickbox says and what happens are always lined up.
Eva Sheie, Founder

Unbeatable Value

Pay-as-you-go Email verification

Enhance email list quality

Stop wasting money on unnecessary subscriptions

Kickbox's pay-as-you-go pricing, you only pay for the email verifications you actually use. No more oversized subscription boxes, just the perfect fit for your needs.

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Use just the right amount: No more wasteful subscription plans.
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Pay only for what you use: If we can't verify an email address, we won't charge you for it.
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Flexible scaling: Real-time API users can auto-recharge verifications to handle usage peaks seamlessly.

How much can you reclaim in lost opportunities by using Kickbox?

Email Verification ROI Calculator

How much can you reclaim in lost opportunities by using Kickbox?

$

Potential ROI:

0%

Potential $ Lost without Kickbox:

$0
info How is this calculated?
Invalid Addresses = Number of email Signups x 12.5% info
Potentially Valid Addresses = Invalid Addresses x 50% info
Missed Lifetime Value = Potentially Valid Addresses x $10 info
Total Cost = Number of email Signups x 0.008 info
Net Gain = Missed Lifetime Value - Total Cost
ROI = Net Gain / Total Cost
Get Started Free
Learn more about Email Verification Pricing arrow_forward
Sometimes there are peak periods where we use a lot of credits and then there will probably be months where we use very few credits. That’s why Kickbox’s pricing is nice.
Sanne A, Product Owner

Beyond Email Verification:

Email Deliverability Consulting

Email Deliverability Consulting Our team of experts is here to guide you through the complex world of email deliverability. From comprehensive audits to tailored advice, we provide actionable insights to optimize your email campaigns and reach the inbox consistently.

Email deliverability consulting
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Deliverability Audits: Comprehensive analysis of your email infrastructure, practices, and performance.
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Strategic Recommendations: Tailored action plans designed to improve your inbox placement and sender reputation.
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Ongoing Support: Benefit from our continuous monitoring and expert advice as you implement and refine your email strategies.
Schedule a Consultation Learn more

What Our Customers Say

Kickbox Reddit Case Study
-12M undeliverables identified
reduction in bounces
increased engagement

Reddit

Kickbox's email verification API has been pivotal in refining our email strategy, significantly cutting down on bounce rates and elevating user engagement, marking a transformative shift in how we connect with our community.
Rose Liu Group Product Manager at Reddit
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Kickbox The Zebra Case Study
-12.3% bounce rate
+2.7x open rates

The Zebra

Kickbox comes highly recommended by many email marketing experts in the industry. There are many options to choose from, but we ultimately decided to go with Kickbox based on referrals, industry expertise, integration variety, and general ease of use.
Cynthia Caridad Director of Lifecycle at The Zebra
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Kickbox Rocksbox Case Study
-27% hard bounce rate
-50% customer issue inquiries

Rocksbox

Integrating Kickbox was a game-changer for our email campaigns. We've seen a significant drop in bounce rates and a notable increase in engagement. It's more than just improved metrics; it's about truly connecting with our customers. Kickbox has been pivotal in this success.
Rocksbox Senior Marketing Manager at Rocksbox
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Kickbox EGO Case Study
+8% bad emails blocked
-60% bounce rate

EGO

I would highly recommend Kickbox as the go-to tool to help with email deliverability and verification. Everyone is very helpful, super simple to set up and platform really easy to use
Angela Rhodes Head of CRM at EGO
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Kickbox Livestorm Case Study
4x reduction in bounces

Livestorm

We integrated the Kickbox API into our platform to give our users the option to only accept registrants using their work email. It was a long-requested feature that would’ve potentially created a few headaches had we implemented it ourselves.
Thibaut Davoult Growth Engineer at Livestorm
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Kickbox Mulesoft Case Study
98% deliverability improvement

Mulesoft

Kickbox provided us with a reliable safeguard against sending messages to invalid email addresses, significantly increasing campaign engagement and preserving our sender reputation
Aubrey Morgan Digital & Lifecycle Marketing at Mulesoft
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See why thousands of the world’s largest companies trust Kickbox