Bouncer Review (2026)
Email verification with non-expiring credits, toxicity scoring, 180K/hr API, form protection via Shield, and optional inbox monitoring. 4.8/5 on G2 across 200+ reviews.
Bouncer is the clearest choice for teams verifying intermittently: credits never expire, unknowns are free, and toxicity scoring catches litigators and spam traps that standard verification misses. The Deliverability Kit and Shield are separate billing lines, and warmup is not included anywhere in the product.
Audience Fit
Who Bouncer fits and who should pass
Best for
SDRs and RevOps: credits roll forward, no expiry
Developers: 180K/hr API, sync and async
Catch-all lists: under 2% unknown rate claimed
Risk-conscious teams: toxicity flags litigators, traps
Skip if
Outreach needed: Bouncer is verification only
Unified credits: Kit is separate $25+/mo
Warmup required: no warming product included
Volume cost focus: compare ZeroBounce, Emailable at 1M+
Pricing
Pay-as-you-go from $8/1K: credits never expire
No subscription required for email verification. Unknowns and duplicates are not charged, which saves 5 to 15% of credit spend on B2B lists with high catch-all rates.
| Credits | Price | Cost per email |
|---|---|---|
| 1,000 | $8 | $0.0080 |
| 5,000 | $35 | $0.0070 |
| 10,000 | $60 | $0.0060 |
| 50,000 | $250 | $0.0050 |
| 100,000 | $400 | $0.0040 |
| 250,000 | $750 | $0.0030 |
| 500,000 | $1,250 | $0.0025 |
| 1,000,000 | $2,000 | $0.0020 |
On Bouncer, unknowns and duplicates are not charged. For B2B lists with high catch-all rates, this saves 5 to 15% of credit spend versus platforms that bill every processed row.
Three Products
Verification · Shield · Deliverability Kit
| Product | What it does | Pricing |
|---|---|---|
| Email Verification | Bulk list cleaning via app + real-time API. Toxicity scoring (0-5 scale). No charge for unknowns or duplicates. Credits never expire. | Pay-as-you-go (from $8/1K) |
| Bouncer Shield | Real-time form protection. Blocks invalid, disposable, and malicious emails at signup. IP blocking included. No-code setup. | From ~$7/mo |
| Deliverability Kit | Inbox placement tests, SPF/DKIM/DMARC validation, SpamAssassin scoring, blocklist monitoring for IPs and domains. | From $25/mo (Starter) |
Core Features
What Bouncer verifies, scores, and protects
| Feature | What it does |
|---|---|
| Toxicity scoring (0-5) | Flags five risk categories beyond bounce prediction: toxic addresses, data breach records, known complainers, litigators, and spam traps. Separate fields per category in results. |
| Verification API | Synchronous and asynchronous endpoints. 180,000 emails/hr throughput. 200 req/min batch, 1,000 req/min real-time. MFA and IP allowlisting included. |
| Bulk list verification | Upload CSV via app. Batch size up to 500,000. Results include status, sub-status, and toxicity fields per email. |
| Bouncer Shield | No-code form protection. Validates email in real time as visitors type. Blocks disposable, invalid, and high-risk inputs at the source. |
| Company enrichment | Returns company name, size, industry, and website alongside verification results when available from the domain. |
| Engagement insights | Returns last open, click, reply, unsubscribe, and bounce signals for verified addresses when available. |
| EU hosted + GDPR | All data processed and stored in the EU. GDPR compliant with MFA and IP allowlisting. No extra configuration needed for European teams. |
A deliverable address owned by a litigator or known complainer creates legal and reputation risk that standard verification misses. The 0-5 scale lets teams suppress specific risk categories without removing contacts from the CRM.
API Reference
API specs: 180K/hr, sync and async endpoints
| Spec | Value |
|---|---|
| Endpoint types | Synchronous (real-time, single email) + Asynchronous (batch processing) |
| Throughput | 180,000 emails/hour |
| Rate limit (batch) | 200 requests/min |
| Rate limit (real-time) | 1,000 requests/min |
| Max batch size | 500,000 (recommended: 1,000-10,000) |
| Authentication | API key in request header only. MFA and IP allowlisting available. |
Strengths vs Tradeoffs
Where Bouncer wins and where it falls short
Strengths
Credits + unknowns: never expire, duplicates free
Toxicity scoring: flags litigators, complainers, spam traps
4.8/5 G2: 300+ combined reviews, consistent ratings
EU hosted: GDPR compliant, MFA included
Tradeoffs
Deliverability Kit: separate $25-$250/mo subscription
No warmup: need a separate warming tool
No sequencer: sending side not covered
Three billing lines: credits + Shield + Kit
Alternatives
Not the right fit? Closest options
FAQs
Bouncer: 4 questions before buying
Yes, Bouncer verification credits have no expiration date. Buy a pack when needed and use it at your own pace. This works well for seasonal campaigns or variable list sizes without pressure to burn credits before a monthly reset.
The 0-5 scale flags five risk categories: toxic addresses, data breach records, known complainers, litigators, and spam traps. Each category is returned as a separate field, so teams can suppress specific risk types rather than treating all flagged contacts the same way.
Both offer non-expiring credits and no charge for unknowns. Bouncer adds toxicity scoring; ZeroBounce adds email activity scoring. Bouncer is EU-hosted, which is often the deciding factor for European teams handling GDPR-sensitive contact data.
Yes. Shield is a standalone monthly subscription from approximately $7/mo and does not require a verification credit balance. It validates emails in real time as users type, blocking invalid and high-risk inputs before they enter the list.
Bottom Line
Should you use Bouncer?
Use Bouncer if you need non-expirin