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ZeroBounce

ZeroBounce provides email validation and deliverability services designed to help businesses connect with customers by ensuring their email lists are clean and accurate.

Free tierPrice verified 2026-10-06Visit site ↗
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Our verdict

Who it's for

Accurate, fast, and secure email verification and deliverability tools.

Who should look elsewhere

Pure email verification costs noticeably more than rivals like MillionVerifier and Bouncer, with reviewers flagging ZeroBounce as expensive 159 times on G2 and per-email rates only becoming competitive at very high volume tiers.

Pros

  • +High accuracy (99.6%) for email validation
  • +Offers both bulk and real-time verification options
  • +Extensive integrations with popular marketing platforms
  • +Includes additional tools like AI Scoring and Email Finder
  • +Credits never expire for paid plans

Cons

  • −Pure email verification costs noticeably more than rivals like MillionVerifier and Bouncer, with reviewers flagging ZeroBounce as expensive 159 times on G2 and per-email rates only becoming competitive at very high volume tiers.
  • −Independent tests put real-world accuracy around 96 to 97 percent, below the 99.6 percent figure ZeroBounce advertises on its marketing pages.
  • −Catch-all domains are simply returned as catch-all with no individual deliverability estimate, leaving buyers to guess on a meaningful slice of their list.
  • −Multiple reviewers report slow bulk verification processing and a dated interface compared with competing verifiers.

Key features

  • ✓99.6% accurate real-time email validation
  • ✓Email deliverability tools
  • ✓Bulk email verification
  • ✓Real-time email verification API
  • ✓AI Email Scoring
  • ✓Email Finder tool
  • ✓Integrations with over 60 platforms (website builders, CRMs, email delivery services)
  • ✓Detailed Status Codes

Pricing

PlanPriceBillingNotes
Free—month100 free monthly email verifications; Credits never expire; Unknown results are free

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