B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
3.6%
3.6% -- email decay rate monthly for business email addresses (2026)
Business email addresses decay at a rate of approximately 3.6% per month.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
3.6%
Unit
Percentage
Data Vintage
2026
Entity
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
ZoomInfo
Primary
Tier B
https://www.datamagnet.co/post/how-often-to-reverify-contact-data-cadence-guide/ ↗
Source Article
How Often Should You Re-Verify Contact Data? A Cadence Guide (2026)
Disclosure: This article is published by Datamagnet. Vendor claims are self-reported unless otherwise noted.
How Often Should You Re-Verify Contact Data? A Cadence Guide
Most teams check contact data once, load it into the CRM, and never look at it again. That's a problem: B2B contact records decay …
Original Research
ZoomInfo
· Original study ↗
Methodology
ZoomInfo Pipeline report
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
business email addresses: 3.6% email decay rate monthly. Source: ZoomInfo (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-decay-monthly-zoominfo-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/email-decay-monthly-zoominfo-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>3.6%</strong> -- email decay rate monthly for business email addresses<br><small>Source: ZoomInfo (2026) · <a href="https://lighthousedata.io/data/email-decay-monthly-zoominfo-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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