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Email List Verification

Improve the quality of your email lists with Kickbox’s bulk email address checker.

Elevate deliverability and maintain a pristine email list with Kickbox's advanced list verification tool, backed by a 95% Delivery Guarantee. Quickly and cost-effectively ensure your email campaigns reach their intended audience, keeping your list healthy and your ROI high.

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100 free verification credits with all new accounts

Thousands of Senders Trust Kickbox

Verifying your email list has never been easier

Built by email experts, Kickbox email list verification is easy to use, delivers superior accuracy & lightning-fast results to ensure your email list quality is top-notch.

Simply drag & drop your email list or import directly from your favorite marketing tools.

See Integrations

Email List Management Made Simple

Protects Sender Reputation

Sending to quality email addresses helps maintain a good sender reputation—crucial for long-term email deliverability.

Improves Data Quality

Keep your email list clean, remove invalid or problematic email addresses to improve the overall quality of your data.

Reach More Inboxes

Only sending to valid, high-quality contacts promotes better deliverability & ensures more of your messages reach your subscribers’ inboxes instead of the spam folder.

Increase Email ROI

Improved email data quality, sender reputation & deliverability will boost your bottom line. That’s a win-win situation!

Better Engagement

Sending to valid email addresses lead to higher engagement rates, since verified addresses are more likely to belong to real people who are interested in your content.

More Ways to Segment

Segment your list based on verification results to improve effectiveness, identify possible inactives & remove invalids.

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Send smarter with actionable insights

Kickbox's AI-powered technology leverages a network of billions of email signals & trusted sources to ensure 99.5% accuracy, so your messages reach your customers.

Disposable Domain Checker

Detect disposable email addresses that are intended for temporary use & offer no value to you as a sender, allowing you to remove them from your email list.

Accept-all & Free Domain Detector

Identify the domains that accept all messages making them unverifiable & domains that offer free mailboxes, like Gmail, Yahoo, etc.

Role Address Identification

Find out how many role addresses—like help@, sales@, or info@—are present in your email lists. High numbers can result in lower engagement since they are not usually managed by an actual person.

Detect Syntax Issues & Typos

Connect the Kickbox API to protect your email database from typos & invalid addresses—anywhere you capture email data online.

When to verify your email list data

For most businesses (and marketers!) your email list is your most valuable asset. Here are the most common reasons you should be verifying your email lists.

When you are experiencing high bounce rates or poor campaign performance

Before re-enaging an old email list or stale leads

Ahead of seasonal or holiday campaigns

Before migrating email data to a new ESP, CRM or sending platform

Prior to warming up or sending from a new IP address or domain

If you suspect you have data collection issues

How Bluetent leverages Kickbox to reduce bounces & maximize email ROI

Bluetent has taken a multi-faceted approach to email list hygiene to drastically reduce bounce rates—to fewer than 2%—across its entire client base.

Here are a few ways Bluetent use Kickbox email list verification:

Onboarding new clients with outdated email address lists
When importing data previously managed by a 3rd party
Prior to ramping up volume, e.g. during peak sending season

View Case Study

FAQs about email list verification

How do I verify my email list?

The best way to verify an email list is to use an email verification tool like Kickbox. Email addresses can be verified manually, but this is tedious and inefficient. You can easily drag and drop your email lists into the Kickbox platform for verification or use one of our 30+ ESP integrations. Visit our documentation page to learn more about how to verify your list using Kickbox.

How frequently should I verify my lists?

It depends on how often you send email campaigns. It’s good practice to verify your list before sending out importanta campaigns, but it’s best practice to regularly verify your list—every 3 to 6 months is recommended. Tools like Kickbox’s real-time verification, can aid list health by keeping invalid email addresses out during the collection.

Can I verify my email list online for free?

Yes. Kickbox offers each new account 100 free verification credits. This means you can verify your first 100 email addresses at no charge. This is helpful when testing. If you need more testing credits feel free to reach out. To verify your email lists at scale, pay-as-you-go pricing options are available. Flexible plans & discounts available for high-volume senders. Contact us to learn more.

What is the best email verifier?

Kickbox on accuracy, and we pride ourselves on being the friendly neighborhood experts you need. We also provide the works, including email verification, point-of-capture, our very own Sendex™ score, and a suite of other tools!