14 Email Verifiers Compared: We Sent Mail Through 6

Ranked by bounce data from one send test, then by published price for 10,000 verifications.

TL;DR

• WizLeads: kept 852 of 1,000, bounced 0.59% and costs $19.50 per 10,000 pro-rata on its $39 Freelancer plan.
• LeadMagic: kept 822, bounced 0.85% and costs $49.50 per 10,000 pro-rata on its $99 Essential plan.
• NeverBounce: bounced 0.56% while rejecting 289 and costs $50 pay as you go.
• MillionVerifier: bounced 0.99%, rejected 291 and costs $39 per 10,000.
• Debounce: had the lowest bounce rate, 0.15%, with 330 rejected, and costs $25 per 10,000.
• ZeroBounce: kept the most, 888, but bounced 3.72%, and costs $129 pay as you go.
• Reoon: was not tested and is the cheapest of the 14 for 10,000 verifications at $11.90, below WizLeads' $19.50.
• EmailListVerify: was not tested and costs $27.99 per 10,000 in USD.
• Verifalia: was not tested, costs $49.90 per 10,000 and charges 1, 2 or 4 credits by quality level.
• Bouncer: was not tested, costs $60 per 10,000 and does not charge for unknown results.
• Emailable: was not tested, costs $60 per 10,000 and has a 5,000-credit minimum.
• Clearout: was not tested and costs $65 one time, $58 a month on Monthly or $32 a month on Annual.
• Kickbox: was not tested, costs $70 per 10,000 and expires credits after a year.
• Hunter: was not tested and costs about $74.50 per 10,000 pro-rata on its $149 Growth plan, from a pool shared with its finder.

In a send test on the same 1,000 addresses, six verifiers bounced between 0.15% and 3.72% of the mail they approved and rejected between 11.2% and 33.0% of the list. WizLeads kept 852 addresses at a 0.59% bounce rate. Debounce bounced least, 0.15%, by rejecting 330. Of the 14 tools here, Reoon publishes the lowest price for 10,000 verifications: $11.90.

Vendor accuracy claims make a poor guide to the best email verification tools, because each vendor grades itself and the figures do not match. EmailListVerify states 97% on one page and 99% on another, ZeroBounce says 99.6%, and MillionVerifier says 99%+. None of them is a count of bounces.

So we sent real mail and counted. This page sets that test beside the published prices of eight more tools we did not test. Each tool gets the same four lines: result, price, billing and expiry, and who it fits.

How the 14 are ranked

The six send-tested tools come first, grouped by two numbers: how many of 1,000 addresses a tool kept, and the bounce rate on those. Group one kept more than 800 and bounced under 1% (WizLeads, LeadMagic). Group two bounced under 1% but kept fewer than 800 (NeverBounce, MillionVerifier, Debounce, ordered by addresses kept). Group three bounced over 1% (ZeroBounce).

The eight untested tools follow, ordered by the published price for 10,000 verifications bought once, lowest first. Bouncer and Emailable tie at $60, and Bouncer comes first on its 100,000 price, $400 against $420. Hunter sells only plans, so its figure is its Growth plan pro-rata. Subscription and annual prices appear in each entry and never set the order.

The cut-offs are our own rule for this post. The benchmark itself calls the gap between 4 and 7 bounces noise.

What the send test measured

Every figure below comes from one test: 1,000 real-estate decision-maker emails, the same list to six verifiers, mail sent to every address each one approved.

Source: our send test. Bounce rate is bounces divided by addresses kept.

The run mailed only addresses that at least one tool approved, so no rejected address was ever checked by a send. A rejection count is the cost side of the trade, not proof of error, and on 1,000 addresses the gap between 4 bounces and 7 is within noise. It covers one list and one industry. Debounce ran its standard check, not its paid catch-all one, and MillionVerifier flags catch-alls without saying whether they are valid or invalid.

1. WizLeads

Result: Kept 852 of 1,000, 5 bounced (0.59%), 148 rejected. That is the most addresses kept by any tool that bounced under 1%.

Price: WizLeads' verification page lists Freelancer at $39 a month, which covers 20,000 verifications: $19.50 per 10,000 ($1.95 per 1,000), pro-rata. Agency, Cartel and Kingpin work out to $12.38, $9.95 and $8.32 per 10,000. Verification costs 0.5 credit per email, charged for every email processed, whether the result is valid, invalid, catch-all or unknown.

Billing and expiry: Credits roll over for one month. The free tier is 500 credits once, or 1,000 verifications. WizLeads says it refunds 100% of your credits if bounces on addresses it marked valid pass 2%, subject to what it calls email infrastructure diagnosis.

Fits: It fits cold email to scraped or purchased B2B lists heavy with catch-alls. A bulk CSV upload and a REST API come on every plan, and WizLeads also scrapes Sales Navigator and finds work emails.

2. LeadMagic

Result: Kept 822, 7 bounced (0.85%), 178 rejected.

Price: LeadMagic's pricing page charges 0.25 credit per validation. Essential is $99 a month for 5,000 credits, or 20,000 validations: $49.50 per 10,000 ($4.95 per 1,000), or $41.50 on the yearly price.

Billing and expiry: There are no free credits. On monthly plans the credit wallet is capped at twice the monthly allotment and the excess expires, while annual credits refresh yearly. The pricing page says "Failed lookups are free", while section 5.7 of LeadMagic's Terms says metered actions use credits whether or not they return a match.

Fits: Pick it if you want validation, email finding, mobile lookups and company data in one credit pool, through the app, an API or AI agents.

3. NeverBounce

Result: Kept 711, 4 bounced (0.56%), 289 rejected. Of those 289, 79 came back unknown.

Price: NeverBounce's pricing page lists pay as you go at $50 for 10,000 ($5.00 per 1,000). Growth is $49 a month for up to 10,000.

Billing and expiry: Its billing help says 1 credit equals 1 verification, and pay-as-you-go credits expire 12 months after purchase. New accounts get 10 free credits. ZoomInfo Technologies LLC trades as NeverBounce, and its Terms limit results to business-to-business use.

Fits: It suits warm lists where a rejected contact costs little and a bounce costs a lot.

4. MillionVerifier

Result: Kept 709, 7 bounced (0.99%), 291 rejected. Its homepage now advertises catch-all verification at no extra cost, which we have not tested.

Price: MillionVerifier's homepage prices 10,000 credits at $39 ($3.90 per 1,000), 100,000 at $149 and 1 million at $449. There is no separate pricing page.

Billing and expiry: Credits never expire, and signup gives 100 free ones. The homepage promises a full refund on any email it cannot verify with certainty. Its Terms call the free handling of unknown and catch-all results a discretionary goodwill programme.

Fits: It fits large lists where price per address decides. The 1 million pack works out to $0.449 per 1,000.

5. Debounce

Result: Kept 670, 1 bounced (0.15%), 330 rejected. That is the lowest bounce rate and the highest rejection count of the six.

Price: Debounce's pricing page lists pay as you go at $25 for 10,000 ($2.50 per 1,000), $15 for 5,000 (the minimum purchase) and $135 for 100,000.

Billing and expiry: Credits never expire, and each account starts with 100 free credits. The catch-all deep check costs 10 credits on top of the standard 1, so 11 in total, and every call is billed.

Fits: It suits senders where a bounce costs more than a lost address.

6. ZeroBounce

Result: Kept 888, the most of the six, 33 bounced (3.72%), 112 rejected. It approved 36 more addresses than WizLeads and bounced 6.3 times as often.

Price: ZeroBounce's pricing page lists pay as you go at $129 for 10,000 ($12.90 per 1,000) and $69 for 5,000, with a $39 minimum for 2,000. ZeroBounce ONE is $99 a month for 10,000 credits ($9.90 per 1,000) and bundles warmup seeds, inbox placement tests and blacklist monitors.

Billing and expiry: ZeroBounce charges one credit per address, and unknown results cost nothing. ZeroBounce's Terms of Use (revised 5 May 2026) say credits bought by customers who registered after 1 June 2026 expire two years after the latest purchase, never during an active ONE subscription. The pricing page label says "Credits never expire". The free tier is 100 credits a month and needs a business domain.

Fits: It fits buyers who need compliance paperwork. Its facts page lists SOC 2 Type 2, ISO/IEC 27001:2022 and HIPAA-ready status, with files deleted within 30 days.

7. Reoon

Result: We did not send-test Reoon.

Price: Reoon's published price undercuts WizLeads' Freelancer plan. Reoon's email verifier page lists $11.90 for 10,000 verifications ($1.19 per 1,000), against WizLeads' $19.50 at 0.5 credit per email, which is $7.60 less. Of the 14 tools here, it is the cheapest way to buy 10,000 verifications. WizLeads' Agency plan works out to $12.38 per 10,000, above Reoon's pack, while Cartel at $9.95 and Kingpin at $8.32 sit below it.

Billing and expiry: Instant credits never expire. Unknown results are refunded automatically, and every other status, catch-all included, is billed. A $9 daily plan gives 500 credits a day, and unused ones do not carry over. The free tier is 20 credits a day, up to 600 a month, plus 100 at sign-up.

Fits: Reoon suits buyers who want the lowest published price for 10,000 verifications. Reoon's own page says it verifies scraped, purchased or exported lists.

8. EmailListVerify

Result: We did not send-test EmailListVerify. Its accuracy claim is stated three ways: 97% on the pricing FAQ, 99% on the homepage, and above 99% for High quality at 2 credits.

Price: EmailListVerify's pricing page shows pay as you go at $27.99 for 10,000 ($2.80 per 1,000). The same 10,000 credits on a monthly plan are $25 a month. These are the USD prices a US visitor sees, and other locations see other face values.

Billing and expiry: Only unknown, antispam_system, smtp_protocol and invalid_syntax results cost nothing. Catch-all results cost 1 credit on Standard or 2 on High quality. Pay-as-you-go credits do not expire, and subscription credits work only while you subscribe. Registration gives 100 free verifications.

Fits: Use it for lists with many unresolved addresses, since Deep Scan re-checks each one at 3 credits.

9. Verifalia

Result: We did not send-test Verifalia.

Price: Verifalia's pricing page lists credit packs in USD: $49.90 for 10,000 ($4.99 per 1,000) and $389 for 100,000. Standard quality costs 1 credit, High 2 and Extreme 4, so the 10,000 pack covers 10,000, 5,000 or 2,500 checks.

Billing and expiry: Pack credits never expire. The free plan is 25 verifications a day, and those daily credits expire at midnight GMT. Duplicates are free.

Fits: It fits teams that want to pick a depth per list: Standard runs 1 pass, High 3 and Extreme 9. Verifalia's homepage claims over 6,000 integrations.

10. Bouncer

Result: We did not send-test Bouncer. Bouncer markets "Deep Catch-All Verification".

Price: Bouncer's pricing page sells 10,000 credits for $60 ($6.00 per 1,000) and 100,000 for $400. A monthly subscription takes 20% off each tier, which makes 10,000 credits $48.

Billing and expiry: Credits bought on demand never expire, and it does not charge for duplicates or unknown results. New accounts get 100 free credits. Its guarantee promises money back, while its 2018 Terms say all purchases are non-refundable.

Fits: Pick it if you want pay-as-you-go credits that do not expire and do not want to pay for unknowns.

11. Emailable

Result: We did not send-test Emailable. Emailable publishes no accuracy percentage.

Price: Emailable's pricing page lists pay as you go at $60 for 10,000 ($6.00 per 1,000), with a 5,000-credit minimum at $38 and $420 for 100,000.

Billing and expiry: Credits never expire. Duplicates and unknown results are refunded to your balance. A new account starts with 250 free credits.

Fits: It fits opt-in lists, given the terms covered under What separates verifiers below.

12. Clearout

Result: We did not send-test Clearout.

Price: Clearout's pricing page lists 10,000 credits at $65 on its One Time plan ($6.50 per 1,000). The Monthly plan is $58 a month and the Annual plan $32 a month, each for 10,000 credits a month. Deep Verify, its catch-all mode, is priced separately from standard credits.

Billing and expiry: A credit covers a valid, invalid or catch-all result. Unknown results and duplicates within one list are free. Credits never expire, and the free tier is 100 credits once. Its Terms say payments are not refundable under any circumstances, while its pricing guide describes a 30-day refund if bounce passes 10 to 20%.

Fits: Pick it if you also want an email finder and form protection from one vendor.

13. Kickbox

Result: We did not send-test Kickbox.

Price: Kickbox's pricing page lists 10,000 verifications at $70 ($7.00 per 1,000) and 100,000 at $500. The first 100 are free.

Billing and expiry: Unknown results are free. Under Kickbox's Master Services Agreement (effective 26 August 2025), credits expire one year after purchase and fees are non-refundable.

Fits: It fits buyers who want a stated compliance position. The pricing page calls Kickbox GDPR-compliant and "SOC II certified", with verification and support in the US and the EU.

14. Hunter

Result: We did not send-test Hunter.

Price: Hunter's pricing page charges 0.5 credit per verified email. Growth is $149 a month for 10,000 credits, or 20,000 verifications: $74.50 per 10,000 ($7.45 per 1,000), pro-rata, or $52.00 on the yearly price. Starter works out to $122.50. The cards list plans only.

Billing and expiry: On monthly billing, credits reset each month and do not roll over, while yearly plans grant the year's credits up front. The finder and the verifier draw from one pool. The free plan is 50 credits a month, which is 100 verifications.

Fits: It suits people already using Hunter's finder who want one pool and one invoice more than the lowest price per address.

Price per 1,000 and 10,000 on one basis

Source: each vendor's own pricing page, as named in its section above, with EmailListVerify in USD and Clearout on its One Time plan. WizLeads, LeadMagic and Hunter are plan prices divided by the verifications each plan buys. Sorted by price per 10,000.

What separates verifiers

The six tools differ most on catch-all domains and gateways. WizLeads' own classifier found 212 catch-all addresses (21.2%) and 159 behind a Secure Email Gateway (15.9%) in the list, and no independent source gives its true makeup, so those two counts are WizLeads' reading. NeverBounce flagged 137 addresses as catch-all, MillionVerifier 170 and Debounce 201, each already counted inside its own 1,000 split. In WizLeads' reading of the failures, ZeroBounce tended to mark Google catch-all mailboxes valid when the domain accepted mail but the mailbox did not exist; the raw counts and how the send test was run are in the benchmark post.

On the 212 catch-alls, WizLeads approved 160 and rejected the other 52. None of the 160 failed on send. ZeroBounce approved 200 of the 212, and 26 of those (13.0%) bounced or came back as a mailbox that does not exist.

Check the terms before you upload a purchased list. Emailable's terms bar unsolicited marketing, and its guarantee covers only lists from your own opt-in source. Kickbox's Master Services Agreement bars third-party addresses, Debounce's guarantee excludes purchased lists, and MillionVerifier's terms allow them.

Which to pick

Pick WizLeads or LeadMagic if the list is scraped or purchased and you want most of it kept: both kept more than 800 of 1,000 and bounced under 1%. Pick Debounce if avoiding bounces matters more than keeping the list: it bounced once and rejected 330. Pick Reoon if the price of 10,000 verifications decides, and test its free credits on your own list first, because it has no send test behind it.

Skip ZeroBounce for cold lists unless you need its compliance paperwork: 33 bounces on 888 sends was the only result that stood apart in the test. If you will call a verifier from code, the sandboxes, rate limits and callbacks, tool by tool are compared separately.

Before you buy, run 100 addresses from your own list through the tool's free tier.