NeverBounce
DeliverabilityBulk and real-time email verification, part of ZoomInfo since 2021 (reported)
A cheap, fast, deeply integrated verifier with a decade of history, currently defined in public reviews less by its accuracy than by its 12 month credit expiry.
Best for
Marketing and ops teams that want cheap, high-volume list cleaning wired into an existing ESP or CRM, without buying a wider deliverability suite.
Not great for
A buyer who wants to prepay credits and draw them down slowly over several years, or who wants warmup and monitoring in the same subscription.
Starting price
$8/mo
Pricing model
Credit packs
Free trial
Not advertised
Platforms
Web app
Founded
2014
Headquarters
United States
NeverBounce, in plain terms
NeverBounce is an email verification service founded in 2014 in Cleveland, Ohio, and now operated under ZoomInfo (reported), whose entity name carries the site copyright and whose careers, press and status pages the site links to. The product is deliberately narrow: three components cover bulk list cleaning, real-time verification through an API, and Sync, which connects to a CRM or ESP and re-cleans lists automatically so duplicates are not re-charged. Each address is categorised as valid, invalid, catch-all or spam, and the company describes a 20 plus step process that checks an address up to 75 times, backed by human quality assurance on lists with a high unknown count and a claim of removing up to 99.9 percent of bounced addresses. There are more than 80 integrations across ESPs, CRMs and form builders, plus Zapier, n8n and Google Forms, and a free instant bounce analysis for uploaded CSVs. Pricing is credit based at $8 per 1,000 with a 1,000 credit minimum, or a $49 per month Growth plan covering up to 10,000 emails that adds AI lead scoring, unlimited parallel cleaning and CRM auto-sync. The most contested point in public reviews is that purchased credits now expire 12 months after purchase, a policy change several long-term customers dispute.
Key features
- Bulk email list cleaning by CSV upload or CRM connection
- Real-time verification API with per-integration keys
- Sync for scheduled automatic re-cleaning with duplicate-free billing
- Valid, invalid, catch-all and spam categorisation with detailed reports
- Automatic typo correction and company name append
- AI lead scoring and 200 AI-selected leads a month on Growth
- Free instant bounce analysis for any list size
- 80+ integrations across ESPs, CRMs, form builders and automation hubs
Pros
- Sub-penny entry pricing at $0.008 per verification, with volume rates below that
- Fast throughput, with 10,000 emails cleaned in as little as 3 minutes claimed
- Sync re-cleans CRM and ESP lists automatically and only charges for new unique emails
- More than 80 published integrations plus Zapier, n8n and Google Forms
- Free list analysis before you spend anything, with no credit card required to verify a first list
- Human quality assurance on lists with a high unknown count, which the company says cuts error rates on difficult data
Cons
- Credits expire 12 months after purchase, which their own pricing page confirms and which reviewers report as a change from earlier terms
- Trustpilot rates NeverBounce about 2 out of 5 as of August 2026, with credit expiry and unreachable support as the dominant themes
- Reviewers report slow or difficult support contact and API errors going unresolved
- One reviewer reports a high share of results returned as unknown on difficult lists, with credits not refunded for them
- No warmup, inbox placement testing, blacklist monitoring or DMARC monitoring, so it covers only list hygiene
Cost at scale
At the published entry rate of $8 per 1,000 credits, 100,000 verifications is about $800 before the volume discounts advertised at higher tiers. The $49 Growth plan covering up to 10,000 emails works out to about $0.0049 per email at the cap
Users claimed
150,000+ clients claimed, with 1 billion plus emails cleaned claimed
| Plan | Price | Limits | Includes |
|---|---|---|---|
| Pay as you go | $8 per 1,000 credits ($0.008 per credit) | Minimum 1,000 credits, credits expire 12 months after purchase, 10 parallel lists | No commitment, buy credits when you clean, Typo correction and company name append, GTM Guard for AI agent inputs, Works with Zapier, n8n, HubSpot and Mailchimp, Clean up to 10 lists at once |
| Growth | $49 per month, up to 10,000 emails | Up to 10,000 emails per month at the entry rate, volume tiers priced higher | Everything in Pay as you go, 200 AI-selected new leads per month, AI scoring for conversion likelihood, Unlimited parallel list cleaning, CRM auto-sync, only new unique emails are charged |
| Enterprise | Custom quote | Typically used for 250,000+ emails per month, quoted | Unlimited usage across teams and workflows, Advanced security and compliance, Dedicated account manager and onboarding, Custom deduplication, scoring and ownership rules |
From their published pricing, August 2026. Pay-as-you-go is $8 per 1,000 credits, which is $0.008 per credit, with a 1,000 credit minimum, and credits expire 12 months after purchase. The Growth subscription is $49 per month for up to 10,000 emails. Check their pricing page.
What reviews praise
- Reviewers praise speed and low bounce rates after cleaning, with several short five-star reviews calling it an amazing or great validation tool
- Partners such as iContact publicly credit the integration and describe the team as responsive and proactive
- Users value the breadth of ESP and CRM integrations and the ability to clean without leaving their existing stack
- Buyers cite sub-penny pricing as the reason for choosing it over more expensive suites
What reviews flag
- Trustpilot rates NeverBounce about 2 out of 5 as of August 2026, with review titles dominated by expiring credits
- Multiple long-term customers report buying credits under terms without an expiry and later losing them, some describing amounts in the hundreds or thousands of dollars
- Reviewers report an inability to reach a human for support and API errors going unanswered
- One reviewer reports a high proportion of addresses returned as unknown on hard lists, with no credit returned for them, and disputes the review counts advertised on the site
Distilled from public reviews and community threads. Not Weezly's opinion, and not a rating.
API access
Version 4 REST API with app-specific keys per custom integration and published developer documentation
Compliance
Governed by ZoomInfo legal pages, including the ZoomInfo privacy policy and a Do Not Sell or Share request flow. No NeverBounce-specific SOC 2 or ISO certification advertised on the site
Data export
Cleaned list download plus write-back through CRM and ESP integrations
Automation platforms
Zapier, n8n and Google Forms, with published n8n workflow blueprints
Integrations
HubSpot
MailchimpMarketoOracle Eloqua
ActiveCampaignDrip
AWeberiContactAct-OnCleverReachClickFunnels
BombBomb
Zapier
n8nGoogle Forms- HQ
- Cleveland, Ohio, United States
- Founded
- 2014
- Leadership
- Operated under ZoomInfo, whose entity ZoomInfo Technologies LLC carries the site copyright, with careers, press and status pages routed to ZoomInfo
- Company page
Their published pricing in August 2026 sets pay-as-you-go at $8 per 1,000 credits, which is $0.008 per verification, with a 1,000 credit minimum. The Growth subscription is $49 per month for up to 10,000 emails and adds AI scoring, unlimited parallel cleaning and CRM auto-sync, with volume tiers above that. Enterprise is quoted and is described as typical above 250,000 emails per month. Check their pricing page for current figures.
Yes. Their pricing page states that credits expire 12 months after purchase. This is the single most common complaint in public reviews, because several long-term customers report buying credits under earlier terms that did not carry an expiry.
There is no permanent free plan. NeverBounce offers a free list analysis, where you upload a CSV under 500KB and get an accuracy report, plus free test credits at signup with no credit card required to verify a first list.
Yes, and it has been since 2021 (reported). The NeverBounce site describes itself as backed by ZoomInfo, carries a ZoomInfo Technologies LLC copyright, and routes its careers, press, status and privacy policy links to ZoomInfo properties.
No. NeverBounce is a verification tool. Warmup, inbox placement testing, blacklist monitoring and DMARC monitoring are not part of the product, and there is no sending or sequencing layer.
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