MailboxValidator checks email addresses and mailboxes to help identify invalid addresses and reduce email bounces.
Alternatives to Hunter
Hunter brings email discovery, verification, B2B prospecting, and automated cold-email sequences into one service. Its Domain Search, Email Finder, Email Verifier, Discover database, Chrome extension, API, and integrations cover common outreach work, while open tracking and connected email accounts support sequence-based campaigns. A free plan provides 50 monthly credits, but CSV exports are limited to 10 emails per domain, and Hunter does not offer a free trial. Starter,…
APILayer Marketplace is a public API marketplace for discovering, integrating, and managing APIs across categories such as machine learning and financial data.
Emailable verifies email addresses to help keep mailing lists clean and improve deliverability.
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QuickEmailVerification
QuickEmailVerification checks whether email addresses are valid and deliverable, helping businesses reduce bounces.
Free planWebAPI6.8Free plan - 5

Email Hippo
WebAPI6.5From $9.88 a month - 6

CaptainVerify
WebAPI6.4From $36 a month - 7

Clearout Email Verification
Clearout Email Verification checks email addresses individually, in bulk, or through an API to help reduce bounces and keep lists clean.
WebAPIExtension6.2 - 8

DeBounce
DeBounce checks email addresses for syntax, domain, mailbox, catch-all, and other issues.
Free planWebAPI6.1Free plan - 9
XVerify
XVerify checks email addresses, phone numbers, and postal addresses to help improve data quality and email deliverability.
WebAPI6.1$5 one-time - 10

Proofy
WebAPI6.0$5 one-time - 115.1Free plan
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NeverBounce
NeverBounce
5.0From $49 a month


