B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
15%
15% -- email list annual decay rate for B2B email lists (2025)
B2B email lists can lose 15% to 25% of valid email addresses annually due to job changes.
- Purely through job changes
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
15%
Unit
Percentage
Data Vintage
2025
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
mailcleanup.com
Primary
Tier C
https://mailcleanup.com/reduce-email-bounce-rate/ ↗
Source Article
Reduce Email Bounce Rate & How to Fix Email Bounce Back
If your bounce rate is higher than it should be, you already know something is wrong. What you might not know yet is exactly what to do about it – and in what order.
That’s the gap this guide fills.
Here’s the thing most bounce rate guides miss entirely. How to fix email bounce back isn’t a single a…
Original Research
mailcleanup.com
· Original study ↗
Methodology
Range 15-25%; midpoint used. Vendor guide citing list decay from job changes.
Methodology documented
Segmentation
IndustryB2B
RoleAll marketers
Channelemail
Cite this stat
Plain Text
B2B email lists: 15% email list annual decay rate. Source: mailcleanup.com (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/b2b-email-list-annual-decay
HTML Embed
<blockquote cite="https://lighthousedata.io/data/b2b-email-list-annual-decay" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>15%</strong> -- email list annual decay rate for B2B email lists<br><small>Source: mailcleanup.com (2025) · <a href="https://lighthousedata.io/data/b2b-email-list-annual-decay" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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