B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
22%
22% -- email database decay rate for email marketers (2025)
According to a Convince&Convert study, up to 22% of an email database naturally decays on an annual basis.
- Up to 22%
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
22%
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
Convince & Convert
Primary
Tier C
https://ehygienics.com/cleaning-up-your-contacts-the-role-of-email-hygiene-services/ ↗
Source Article
Cleaning Up Your Contacts: The Role of Email Hygiene Services
Cleaning Up Your Contacts: The Role of Email Hygiene Services
Cleaning Up Your Contacts: The Role of Email Hygiene Services
In the bustling, interconnected world of the digital age, your contact list can quickly become as cluttered as a teenager’s bedroom. An overcrowded email list isn’t just an inc…
Original Research
Convince & Convert
· Original study ↗
Methodology
Cited from a Convince&Convert study; original methodology not described
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
email marketers: 22% email database decay rate. Source: Convince & Convert (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-database-annual-decay-22pct
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<blockquote cite="https://lighthousedata.io/data/email-database-annual-decay-22pct" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>22%</strong> -- email database decay rate for email marketers<br><small>Source: Convince & Convert (2025) · <a href="https://lighthousedata.io/data/email-database-annual-decay-22pct" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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