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Email Verification Tools Software Integrated with Klaviyo (2026)

Last updated: April 2026

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8 software options

Kickbox Email Verification logo

Kickbox Email Verification

Email verification software for developers and marketers

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Kickbox software automates the email address verification process. Marketers and business agencies can use it to improve the accuracy of email list data and deliverability. It integrates with most email providers and marketing or EDM software, including SendGrid, MailChimp, and Constant Contact.

Read more about Kickbox Email Verification

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Bouncer logo

Bouncer

The easiest to use, yet the most powerful Email Verification

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Email address validation and verification solution. Created to clean email lists, and verify email address in real-time too.

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Emailable logo

Emailable

Email Verification that's astonishingly easy and low-cost.

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Emailable is a cloud-based email verification tool which assists marketing teams with filtering their customer email database and optimizing campaigns. Key features include domain check, syntax check, quality assessment, an open API, mail server validation, and reporting.

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mailfloss logo

mailfloss

Bulk Email Verification for Busy Businesses

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mailfloss is a cloud-based bulk email verification platform designed to help small to large businesses protect, clean & verify email lists automatically. It allows users to integrate lists with several systems, customize preferences & manage them with automatic verification, decay protection & more.

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ZeroBounce logo

Online email validation system

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ZeroBounce is an email verifier that's available via dashboard, API, and iOS.

The service verifies 30+ types of email addresses with 99% accuracy, including valid, invalid, disposable, spam traps, and abuse emails. It takes approximately one hour to verify 100,000 mixed domains.

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VerifiedEmail logo
(0)

Cloud-based email verification software

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VerifiedEmail is a fast and accurate email validation and list cleaning solution. It offers real-time email verification with a website widget or API, bulk email list cleaning with precision, and automated daily re-verification to maintain list quality. VerifiedEmail integrates seamlessly with major email delivery platforms, helping businesses avoid deliverability issues, suspended sender accounts, and wasted resources on invalid email addresses.

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ClearBounce logo
(0)

Email verification and list cleaning tool

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Email verification and deliverability platform. Verify bulk lists with 99.5% accuracy, protect forms with real-time validation, and monitor inbox placement. Starts free with 100 credits.

Read more about ClearBounce

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Folderly logo

All-in-one email solution platform

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Folderly is an email deliverability solution that offers a comprehensive approach to ensuring flawless email deliverability. Locate, solve, and prevent email deliverability pitfalls, and ensure your emails reach the Inbox folder.

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