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ZeroBounce Email Scoring
zerobounce.net · Email Scoring · scored Apr 2026ZeroBounce scores catch-all emails 1-10, but doubles your credits
Best forSales teams needing to segment risky catch-all leads before outreach
From $15 per month
SOC 2ISO 27001HIPAA
Top score
9.3Product9.4Market8.9Usability9.5Value9.1Security9.0Integrations
AI scoring tool that rates catch-all email addresses 1 to 10 to salvage risky B2B leads.
Standout factScoring a catch-all email costs 2 credits, one for validation, one for scoringzerobounce.net
Biggest catchA 2,000 credit minimum purchase applies before you can buy smaller batches.zerobounce.net
4.8/5Trustpilot ratingzerobounce.net
45+Native integrationstrulyinbox.com
2,000 ($39)Minimum credit purchasezerobounce.net
True monthly cost
Cost to validate and score 1 email
Validation1 credit
Scoring1 credit
Total2 credits
2,000 credit minimum purchase, $39
Upside
- AI scores catch-all emails on a 1-10 scale
- SOC 2, ISO 27001 and HIPAA certified
- 45+ native CRM and ESP integrations
Catch
- Scoring and validating costs 2 credits total
- 2,000 credit minimum purchase required
- Pricier than basic verification-only tools
Pick it ifSales teams needing to segment risky catch-all leads before outreach
Skip it ifBudget users who only need basic, single-credit email verification
PricingFrom $15/month, 2,000 credit minimum at $39, scoring uses 2 credits/email
Editor's takeZeroBounce's scoring tool solves a specific, real problem. Catch-all addresses that standard verifiers just label unknown get an actual 1-to-10 engagement estimate instead. That extra intelligence costs an extra credit per email, so a full validate-and-score pass runs two credits instead of one, worth it if your list leans heavily on catch-all domains.
How many credits does Email Scoring use?
One credit to score an email, separate from validation. Validating and scoring the same address together uses 2 credits total.
What is the minimum ZeroBounce purchase?
2,000 credits, currently priced at $39, which can be a barrier for very small lists or occasional users.
The evidence: 6 criteria, 2 penalties (−0.08 points)
9.3
Product Capability & DepthLooked for: We evaluate the tool's ability to accurately assess email validity and predict engagement, particularly for difficult catch-all addresses.ZeroBounce offers an AI-powered Email Scoring system that predicts subscriber engagement on a 1 to 10 scale. It is specifically designed to evaluate catch-all email addresses that standard verifiers simply label as 'risky' or 'unknown'. The tool uses proprietary AI and historical activity data to gauge the likelihood of an email reaching a real, active user, allowing marketers to salvage high-quality B2B leads.zerobounce.netzerobounce.net
9.4
Market Credibility & Trust SignalsLooked for: We look for widespread industry adoption, verified user reviews, and transparent operating histories that prove the vendor's reliability.ZeroBounce is a highly credible player in the email deliverability space, trusted by over 500,000 customers, including major enterprises like Amazon, Disney, and Netflix. The platform maintains excellent user satisfaction scores, averaging 4.6 on G2 and 4.8 on Trustpilot across thousands of verified reviews. Independent tests also confirm their claimed 96-98% validation accuracy rates.emailexpert.comzerobounce.net
8.9
Usability & Customer ExperienceLooked for: We assess the intuitiveness of the interface, availability of onboarding materials, customer support responsiveness, and cross-platform accessibility.ZeroBounce provides a highly accessible user experience, featuring an intuitive web dashboard and an industry-first iOS mobile app for on-the-go list management. They offer 24/7 live customer support with exceptionally fast response times. While the platform is generally easy to use, some smaller businesses report that the sheer number of deliverability tools can make simple tasks feel overly complex.acnnewswire.comzerobounce.net
9.5
Value, Pricing & TransparencyLooked for: We evaluate pricing structure fairness, total cost of ownership, scalability, and transparency around hidden fees or credit consumption.ZeroBounce operates on a pay-as-you-go and subscription model, with credits starting at $0.0195 and scaling down significantly with volume. While credits never expire and unknown results are free, Email Scoring requires an additional credit on top of standard validation. Furthermore, a minimum purchase requirement of 2,000 credits creates a barrier to entry for micro-businesses.zerobounce.netzerobounce.net
9.1
Security, Compliance & Data ProtectionLooked for: We review the platform's security certifications, data encryption practices, and adherence to global privacy frameworks.ZeroBounce delivers enterprise-grade security, boasting an impressive array of certifications including SOC 2 Type 2, ISO-27001, HIPAA, GDPR, and CCPA compliance. Uniquely, they rely entirely on proprietary hardware rather than shared cloud infrastructure to process data, ensuring complete control over customer privacy. They also utilize Cloudflare Enterprise for WAF and DDoS protection.zerobounce.netzerobounce.net
9.0
Integrations & Ecosystem StrengthLooked for: We analyze the breadth and depth of native integrations with CRMs, marketing automation tools, and the quality of developer APIs.The platform integrates seamlessly with over 45 major marketing and CRM tools, including HubSpot, Salesforce, and Mailchimp. Developers benefit from a robust, well-documented API boasting 99.99% reliability and SDKs for 16 different programming languages. This ecosystem allows users to automate list cleaning and scoring directly within their existing tech stacks.trulyinbox.comzerobounce.net
Score adjustments−0.08 points in total
−0.05Double-charging for validation and scoring. Validating and scoring an email requires 2 separate credits, essentially doubling the cost to fully process a catch-all email.zerobounce.net · severity 65/100
−0.03A rigid minimum purchase requirement of 2,000 credits prevents micro-users from buying smaller batches after their free trial ends.zerobounce.net · severity 40/100
