Best software · Marketing
10 Best Email Verification Tools of 2026
This list is for marketers and SDRs who want to cut bounces before a campaign or sequence goes out. We compared documented features and published prices for 10 email verifiers, focusing on what each one charges for unknown results and duplicates, how credits expire, how catch-all domains are handled and whether checks can run automatically in a CRM or signup form. Scores weigh features at 40%, ease of use at 30% and value at 30%. Prices are the vendors' own US dollar figures where the pricing page showed them; the rest are marked as pending.
By the Mojolin research desk · Updated November 9, 2026 · 10 tools compared · Prices checked on vendor pages, latest November 9, 2026
Questions or corrections: editorial@mojolin.com
Mojolin is self-funded How we score
ZeroBounce is our top pick because validation, A.I. scoring, inbox placement tests and blacklist monitoring sit in one account, and unknown results are free. NeverBounce is the runner-up for sales teams, with CRM auto-sync on its $49 Growth plan. Bouncer offers never-expiring credits from $8 for 1,000, Emailable includes every feature with 250 free credits, and MillionVerifier is the value pick at $449 for 1 million verifications. Kickbox is the cheapest place to start at $5 for 500.
Top picks
Best overall
ZeroBounce
8.8 / 10
Marketing teams that want list cleaning plus deliverability checks in one account.
Read the review →Runner-up
NeverBounce
8.7 / 10
SDR and RevOps teams that want leads checked automatically as they enter the CRM.
Read the review →Also great
Bouncer
8.6 / 10
Marketers who verify lists a few times a year and want credits that never expire.
Read the review →Comparison table
| # | Tool | Pricing | Score | |
|---|---|---|---|---|
| 1 | ZeroBounce | Marketing teams that want list cleaning plus deliverability checks in one account. | Freemium plan with 100 validation credits; pay as you go from $39 for 2,000 credits; ZeroBounce ONE subscription from $99 a month | 8.8 |
| 2 | NeverBounce | SDR and RevOps teams that want leads checked automatically as they enter the CRM. | Pay as you go at $8 per 1,000 credits; Growth $49 a month for up to 10,000 emails | 8.7 |
| 3 | Bouncer | Marketers who verify lists a few times a year and want credits that never expire. | 100 free credits to start; pay as you go from $8 for 1,000 credits | 8.6 |
| 4 |  Emailable | Marketers verifying mid-sized lists who want every feature included without add-ons. | 250 free credits; 5,000 credits for $38 pay as you go or $32.30 a month on a subscription | 8.5 |
| 5 |  MillionVerifier | High-volume senders and lead generation agencies that care most about cost per check. | Plans from $39; 1 million verifications for $449 | 8.4 |
| 6 |  Kickbox | Teams that need small top-ups or strict compliance for verification. | 100 free verifications; paid from $5 for 500 verifications | 8.3 |
| 7 |  Clearout | B2B SDR teams whose prospects sit on catch-all or secure email gateway domains. | See vendor pricing (USD check pending) | 8.2 |
| 8 |  DeBounce | Budget-minded marketers who connect an ESP and want credits that never expire. | See vendor pricing (USD check pending) | 8.1 |
| 9 |  Verifalia | Teams with strict data handling needs or a steady trickle of small checks. | See vendor pricing (USD check pending) | 7.9 |
| 10 |  Hunter Email Verifier | SDRs who already find leads in Hunter and want to verify them in the same account. | See vendor pricing (USD check pending) | 7.8 |
Scoring weights
Every tool gets three editorial scores out of 10, from vendor documentation, product pages and the published price. The overall score is the weighted average below, the same method on every list. Full method
The full ranking
Rank 1 · Best overall
ZeroBounce
An email validation and scoring platform that also bundles a finder, inbox placement tests, blacklist monitoring and warmup.
zerobounce.net8.8
out of 10
Best for: Marketing teams that want list cleaning plus deliverability checks in one account.
ZeroBounce covers the full pre-send routine for a marketing team. You upload a list or connect the API, and each address uses one credit, with unknown results and duplicates not charged. On top of validation, the vendor sells A.I. scoring that rates how likely an address is to engage, which costs one more credit per address and helps when you want to drop valid but dead contacts before a campaign. The same account includes an email finder, inbox placement tests, email server tests, blacklist monitors and a DMARC monitor, so a marketer can check list quality and sending setup together. The vendor states 99.6% accuracy and says files are erased 30 days after upload. Pay as you go starts at $39 for 2,000 credits, and ZeroBounce ONE starts at $99 a month with rollover credits. The trade-off is a higher entry price than the pure verifiers here, and you only get the full deliverability bundle on the subscription.
Standout feature
Validation, A.I. scoring and deliverability tests sit in one account, and unknown results are free.
Use cases
Email marketers
Clean an old newsletter list before a re-engagement send
Outcome: Fewer hard bounces and a healthier sender reputation
Lifecycle teams
Score valid addresses for likely engagement
Outcome: A smaller, more active send list
Agencies
Validate client lists and run inbox placement tests
Outcome: List and deliverability checks from one account
Key features
- Bulk list validation and a real-time validation API
- A.I. email scoring at one extra credit per address
- Email Finder at 20 credits per successful query
- Inbox placement tests, email server tests and blacklist monitors
- Uploaded files erased 30 days after upload
Pros
- Unknown results and duplicate addresses are not charged
- Free plan with 100 validation credits
- Subscription credits roll over each month
Cons
- Pay as you go starts at a 2,000 credit minimum of $39
- Credit expiry rules apply without an active ZeroBounce ONE subscription
- Scoring an address costs a second credit on top of validation
Rank 2 · Runner-up
NeverBounce
A bulk email list cleaner and real-time verifier with automatic CRM sync on its Growth plan.
neverbounce.com8.7
out of 10
Best for: SDR and RevOps teams that want leads checked automatically as they enter the CRM.
NeverBounce is a good fit when the problem is not one old list but a steady flow of new leads. The pay as you go option costs $8 for 1,000 credits and lets you clean up to 10 lists at once, with typos such as gmai corrected automatically and a company name returned for each address. The Growth plan at $49 a month verifies up to 10,000 emails, syncs with your CRM so bad addresses are flagged before they reach workflows, and only charges for new, unique emails, so duplicates are free. Growth also adds 200 AI-picked leads a month and an AI score for likely conversion, which matters more to sales teams than to newsletter senders. NeverBounce lists 80+ integrations, including Zapier, n8n, HubSpot and Mailchimp. Note that pay as you go credits expire 12 months after purchase, unlike several rivals on this list.
Standout feature
Growth syncs with your CRM and charges only for new, unique emails.
Use cases
SDR teams
Keep inbound and purchased leads clean in HubSpot
Outcome: Bad emails flagged before sequences start
RevOps
Automate list hygiene across forms and workflows
Outcome: No manual uploads
Small marketers
Clean one list before a campaign
Outcome: A low one-time cost
Key features
- Bulk list cleaning and real-time verification API
- Automatic typo fixes such as gmai to gmail
- Company name returned for each email
- Auto-sync with your CRM on the Growth plan
- 80+ integrations including Zapier, n8n, HubSpot and Mailchimp
Pros
- Low $8 entry pack with no commitment
- Growth plan charges only for new, unique emails
- Free list analysis and test credits before you buy
Cons
- Pay as you go credits expire 12 months after purchase
- CRM auto-sync needs the $49 monthly Growth plan
- No permanent free plan
Rank 3 · Also great
Bouncer
An email verification app and API with never-expiring credits, form protection, CRM auto-cleaning and toxicity checks.
usebouncer.com8.6
out of 10
Best for: Marketers who verify lists a few times a year and want credits that never expire.
Bouncer is the most flexible option for marketers whose sends are irregular. Credits bought on demand never expire, and the vendor does not charge for duplicate addresses within a list or for unknown results. The minimum purchase is 1,000 credits for $8, with 10,000 for $60 and 100,000 for $400, and new accounts get 100 free credits. Beyond bulk verification and the API, Bouncer sells Shield for real-time checks on signup forms, AutoClean for connected CRMs, a Toxicity Check that flags risky addresses, and engagement insights that show how active contacts are. Its Deliverability Kit adds inbox placement, blocklist, SPF, DKIM and DMARC tests from $25 a month. Those extras are billed separately, so the low entry price covers verification only.
Standout feature
Credits never expire and duplicates or unknown results are never charged.
Use cases
Email marketers
Verify a seasonal list before a promotion
Outcome: Clean data without a subscription
Growth teams
Check signups in real time with Shield
Outcome: Fewer fake addresses at entry
Agencies
Run toxicity checks on client lists
Outcome: Risky addresses removed before sending
Key features
- Bulk list verification and a verification API
- Bouncer Shield for real-time checks on signup forms
- AutoClean to verify CRM contacts automatically
- Toxicity Check for risky addresses in a list
- Deliverability Kit with inbox placement and blocklist tests
Pros
- Credits never expire
- No charge for duplicates or unknown results
- 100 free credits to start
Cons
- Minimum purchase is 1,000 credits
- Deliverability Kit is a separate subscription from $25 a month
- Shield is billed as its own monthly subscription
Rank 4
Emailable
An email verification service for bulk lists, single checks, an API and a signup widget, with credits that never expire.
emailable.com8.5
out of 10
Best for: Marketers verifying mid-sized lists who want every feature included without add-ons.
Emailable keeps pricing simple: one credit per verification whether you upload a list, check a single address, call the API or use the signup widget. Every new account gets 250 free credits so you can test a sample of your list, and credits never expire. Unknown results and duplicates are returned to your balance when a list finishes. The vendor says it typically processes 10,000 emails in under three minutes and a 250,000 address list in about seven minutes, which helps when a campaign is waiting. The minimum purchase is 5,000 credits at $38, or $32.30 a month on a subscription that saves 15%. Inbox placement reports and blacklist monitors draw from the same credit balance. The 5,000 credit minimum makes it a poor fit for people verifying a few hundred contacts.
Standout feature
Every feature is included and unknown results and duplicates are refunded automatically.
Use cases
Newsletter teams
Verify a 50,000 subscriber list before a send
Outcome: Results in minutes
Developers
Add the widget to signup forms
Outcome: Typos and fake emails caught at entry
Marketers
Run an inbox report from the same credits
Outcome: Placement checked without a second tool
Key features
- Bulk verification, single verifier, API and real-time widget
- Inbox reports at 100 credits per report
- Blacklist monitors at 5 credits per check
- Unknown results and duplicates refunded after each list
- Verification for AI agents
Pros
- 250 free credits on every new account
- Credits never expire
- All features included with no paid add-ons
Cons
- Minimum purchase is 5,000 credits
- Entry price is higher than Bouncer or NeverBounce for small lists
- Subscription savings are 15%, which needs a recurring commitment
Rank 5
MillionVerifier
A low-cost bulk email verifier with an API, catch-all verifier and a refund on risky results.
millionverifier.com8.4
out of 10
Best for: High-volume senders and lead generation agencies that care most about cost per check.
MillionVerifier is built around price at volume. The vendor advertises 1 million verifications for $449, with credits that never expire and bulk discounts that stack, and plans start from $39. It also offers a refund on risky emails it cannot verify with certainty and a 100% money-back guarantee. The product covers the core jobs: bulk verification with imports from major email service providers, a real-time API, a catch-all verifier, disposable email blocking and 40+ integrations. It is lighter on marketing extras than ZeroBounce or Bouncer, with no engagement scoring or inbox placement tests listed. For agencies cleaning hundreds of thousands of scraped or purchased leads, the low cost per credit usually matters more than those extras.
Standout feature
1 million verifications cost $449, and risky results it cannot confirm are refunded.
Use cases
Lead gen agencies
Verify hundreds of thousands of leads before outreach
Outcome: Low cost per verified contact
SDR teams
Block disposable emails at signup
Outcome: Cleaner inbound pipeline
Email marketers
Import and clean an old ESP list
Outcome: Bounce risk cut before a win-back send
Key features
- Bulk email verifier with imports from major email providers
- Real-time email verifier API
- Catch-all email verifier
- Temporary and disposable email blocking
- 40+ ready-to-use integrations
Pros
- 1 million verifications for $449
- Credits never expire
- Full refund on emails it cannot verify with certainty
Cons
- Fewer marketing extras such as scoring or inbox tests
- The pricing page we requested returned a 404, so pack sizes come from the homepage
- Entry pack costs $39, more than the smallest packs elsewhere
Rank 6
Kickbox
An email list verification service and API with a threat score, SOC II certification and US and EU based processing.
kickbox.com8.3
out of 10
Best for: Teams that need small top-ups or strict compliance for verification.
Kickbox suits teams that verify small batches often or need compliance paperwork. Pricing starts with 100 free verifications, then $5 for 500, $10 for 1,000 and $70 for 10,000, which makes it the cheapest way on this list to clean a few hundred addresses. If Kickbox cannot give a definitive result, it refunds the credit so you can re-verify later. The vendor says it is fully GDPR compliant and SOC II certified, with verification and support based in both the US and the EU. Beyond list verification and the API, Kickbox offers an Email Threat Score and deliverability consulting. At volume it is pricier than MillionVerifier or Bouncer, with 1 million verifications listed at $2,999.
Standout feature
A 500 verification pack costs $5 and unknown results are refunded.
Use cases
SDRs
Verify a 500 contact prospect list
Outcome: A clean list for $5
Enterprise marketers
Verify lists under SOC II and GDPR controls
Outcome: Easier security review
Developers
Check signups through the API
Outcome: Unknown results refunded
Key features
- Email list verification and verification API
- Email Threat Score
- Free email verifier, spam checker and disposable email checker
- Deliverability consulting
- Credit refund on unknown results
Pros
- Smallest paid pack on this list at $5 for 500
- Unknown results are refunded
- SOC II certified and GDPR compliant
Cons
- Per-verification price is higher than MillionVerifier at volume
- 1 million verifications cost $2,999
- No subscription plan with extra features
Rank 7
Clearout
An email verifier with catch-all Deep Verify, an email finder, form protection, CRM data monitoring and a Google Sheets add-on.
clearout.io8.2
out of 10
Best for: B2B SDR teams whose prospects sit on catch-all or secure email gateway domains.
Clearout targets a specific pain for B2B outreach: catch-all domains, where a normal check cannot confirm a mailbox. Its Deep Verify feature aims to resolve more catch-all and SEG-protected addresses into valid or invalid results, which is useful when your prospects work at larger companies. The core verifier handles single, bulk and API checks, and the vendor claims 99.73% accuracy. Clearout also sells an email finder, a LinkedIn Chrome extension, Form Guard for real-time form validation and Data Pulse, which monitors CRM contacts. You can pay once, monthly or yearly, with subscriptions discounted up to 20%, and credits never expire and carry forward. New accounts get 100 free credits. The prices on the pricing page load by script, so we could not confirm a USD figure.
Standout feature
Deep Verify resolves more catch-all and SEG-protected emails into valid or invalid results.
Use cases
SDRs
Verify prospects at enterprise domains
Outcome: More catch-all addresses resolved
Marketers
Verify a list inside Google Sheets
Outcome: No file exports
RevOps
Monitor HubSpot contact quality
Outcome: Decaying data caught early
Key features
- Email verifier for single, bulk and API checks
- Deep Verify for catch-all and SEG-protected emails
- Email finder and LinkedIn Chrome extension
- Form Guard real-time form validation
- Google Sheets add-on and HubSpot integration
Pros
- Resolves more catch-all results into valid or invalid
- Credits never expire, including on subscriptions
- ISO 27001 and SOC 2 Type II certified
Cons
- The pricing page loads prices by script, so the USD price is pending
- No partial refunds when switching plans
- Free tier is a one-time 100 credits, not a monthly plan
Rank 8
DeBounce
A pay as you go email validation service with a catch-all validator, list monitoring, enrichment and a lead finder.
debounce.com8.1
out of 10
Best for: Budget-minded marketers who connect an ESP and want credits that never expire.
DeBounce sells credits on a pay as you go basis with no expiry, and the vendor says all prices include taxes and fees. One credit covers one validation, duplicates are removed at no cost, and API access uses the same credits. Its pricing page advertises rates from $0.00045 per check at the largest volumes, but the calculator loads by script, so we could not confirm the entry price in USD. Beyond standard validation, DeBounce offers a catch-all validator at 10 credits per check, list monitoring that re-checks lists daily, data enrichment and a lead finder that tests name and domain permutations. Integrations cover HubSpot, Mailchimp, MailerLite, ActiveCampaign, Brevo, Klaviyo and Zapier. New accounts get 100 free credits.
Standout feature
Credits never expire, prices include taxes and fees, and list monitoring is available.
Use cases
Email marketers
Validate a Mailchimp audience
Outcome: Bounces cut without manual exports
Ecommerce teams
Monitor a Klaviyo list for decay
Outcome: Lists kept fresh automatically
SDRs
Generate and test email permutations
Outcome: Usable addresses for new prospects
Key features
- Email list validation and validation API
- Catch-all validation at 10 credits per check
- Daily list monitoring at 2x list size per month
- Data enrichment at 20 credits per successful detection
- Real-time widget, WordPress plugin and ESP integrations
Pros
- Credits never expire
- Duplicates removed free
- API access included with the same credits
Cons
- The pricing calculator loads by script, so the USD price is pending
- Catch-all checks cost 10 credits each
- Free allowance is 100 credits
Rank 9
Verifalia
An email verification service with daily free credits, selectable quality levels, a widget, SDKs and 6,000+ integrations.
verifalia.com7.9
out of 10
Best for: Teams with strict data handling needs or a steady trickle of small checks.
Verifalia combines monthly plans with daily free credits and pay as you go packs that never expire. The free plan includes 25 daily credits, and paid tiers raise that to 250, 1,250, 6,250 or 25,000 a day. You pick a quality level per job: Standard uses one pass and one credit, High uses three passes and two credits, and Extreme uses nine passes and four credits for addresses with temporary problems such as full mailboxes. Bulk uploads accept CSV, TSV and Excel files up to 100MB. The vendor says it keeps PII in RAM rather than persistent storage and lets you set data retention from 5 minutes to 30 days. A widget, SDKs for .NET, Go, Java, JavaScript, PHP and Ruby, a Google Sheets add-on and 6,000+ integrations round it out. Prices load by script, so the USD figure is pending.
Standout feature
Selectable quality levels run up to nine verification passes for hard addresses.
Use cases
Marketers
Re-check hard addresses on the High quality level
Outcome: Fewer unknown results
Developers
Add the widget and SDK to signups
Outcome: Disposable emails blocked
Compliance teams
Set a short data retention window
Outcome: Less verification data retained
Key features
- Bulk list cleaning up to 100MB per file
- Standard, High and Extreme quality levels
- Typo detection, free email and disposable email detection
- Embeddable JavaScript widget and open source SDKs
- Configurable data retention, firewall and TOTP
Pros
- Free plan with 25 daily credits
- Purchased credit packs never expire
- Duplicates always free
Cons
- Prices load by script, so the USD price is pending
- Higher quality levels cost 2 or 4 credits per email
- Plan tiers are harder to compare than flat packs
Rank 10
Hunter Email Verifier
The verifier inside Hunter's email finder and outreach platform, priced at half a credit per check.
hunter.io7.8
out of 10
Best for: SDRs who already find leads in Hunter and want to verify them in the same account.
Hunter is mainly an email finder, but its verifier is a practical choice for SDRs who already source leads there. Each verification costs half a credit, and the free plan includes 50 credits a month, enough for 100 checks. You can verify single addresses, run bulk tasks, or call the API, and the same credits cover the Email Finder and Domain Search. Paid plans add the Discover lead database, Signals intent data and cold email sequences. Credits reset monthly and do not roll over on monthly billing, and the pricing page showed euro prices from our location, so the USD price is pending. For cleaning a large marketing list, a dedicated verifier with never-expiring credits costs less.
Standout feature
Verification costs half a credit and shares credits with Hunter's finder.
Use cases
SDRs
Verify a found email before adding it to a sequence
Outcome: Fewer bounces in outreach
Founders
Check a few addresses on the free plan
Outcome: No upfront cost
Sales teams
Verify a CSV in a bulk task
Outcome: Clean prospects in the same tool
Key features
- Single email verification and bulk verification tasks
- Email Finder and Domain Search in the same account
- Discover B2B lead database
- API, browser extension and Google Sheets add-on
- Cold email sequences
Pros
- Free plan with 50 credits a month
- Verification costs 0.5 credit
- Finding and verifying in one tool
Cons
- Credits reset monthly and do not roll over
- The pricing page showed euro prices from our location, so the USD price is pending
- Not built for very large list cleaning
Frequently asked questions
+What is the best email verification tool in 2026?
ZeroBounce is our top pick for marketers because it combines list validation, A.I. scoring and deliverability tests, and does not charge for unknown results. Pay as you go starts at $39 for 2,000 credits. NeverBounce is the best alternative for SDR teams that want CRM sync.
+Which email verifier is cheapest?
Kickbox has the smallest paid pack at $5 for 500 verifications. At volume, MillionVerifier lists 1 million verifications for $449. ZeroBounce, Verifalia and Hunter have free plans with small allowances.
+Do email verification credits expire?
It depends on the vendor. Bouncer, Emailable, MillionVerifier, DeBounce and Clearout say credits never expire. NeverBounce pay as you go credits expire 12 months after purchase, and Hunter credits reset monthly.
+Will email verification stop all bounces?
No. Verification removes invalid, disposable and many risky addresses, but catch-all domains and unknown results remain uncertain. Tools such as Clearout Deep Verify and Verifalia's higher quality levels reduce that uncertainty at a higher credit cost.
+Should SDRs verify emails they found with a finder tool?
Yes, if the finder does not already verify them. Hunter checks at half a credit each in the same account, and NeverBounce Growth can verify leads as they enter your CRM.
About this list
Updated November 9, 2026 by the Mojolin research desk. Mojolin is self-funded
Questions or corrections: editorial@mojolin.com
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