B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
0.2%
0.2% -- subsequent bounce rate of valid addresses for BounceZero verified valid addresses (2026)
Across BounceZero's verification data on 50M+ emails, addresses verified as valid bounce at under 0.2% on subsequent sends.
- Represents addresses returned as valid on subsequent real sends
- Stated as under 0.2%
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
0.2%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
50,000,000
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
BounceZero
Primary
Tier B
https://bouncezero.io/blog/email-verification-api-guide-developers-2026 ↗
Source Article
Email Verification API Guide for Developers 2026 - Integration, Rate Limits, and Best Practices
Every fake, mistyped, or disposable email address that enters your system costs you twice: once when the welcome email bounces, and again every time your marketing stack tries to reach an inbox that never existed. Email industry data puts the average signup-form typo rate at 5-8% of all submissions,…
Original Research
BounceZero
· Original study ↗
Methodology
BounceZero verification data across 50M+ emails
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
BounceZero verified valid addresses: 0.2% subsequent bounce rate of valid addresses. Source: BounceZero (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/valid-address-subsequent-bounce-rate-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/valid-address-subsequent-bounce-rate-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>0.2%</strong> -- subsequent bounce rate of valid addresses for BounceZero verified valid addresses<br><small>Source: BounceZero (2026) · <a href="https://lighthousedata.io/data/valid-address-subsequent-bounce-rate-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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