B
Evidence Grade B
Graded
accuracy verified by the review judge
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Aging
45%
45% -- spam email traffic share for marketing emails (2024)
45% of marketing emails get classified as spam according to a study by Statista.
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Lighthouse Research Team
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Evidence graded
Value
45%
Unit
Percentage
Data Vintage
2024
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
Statista
Primary
Tier B
https://www.statista.com/statistics/420391/spam-email-traffic-share/ ↗
Source Article
12 Email Marketing Best Practices That Still Work in 2026
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Did you know that a data-based strategy is one-half of the two most effective tools for a marketer?
The other one is email marketing best practices. Combining them both …
Original Research
Statista
· Original study ↗
Methodology
Statista study
Methodology documented
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Industrymarketing
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marketing emails: 45% spam email traffic share. Source: Statista (2024). Via Lighthouse Intelligence -- https://lighthousedata.io/data/statista-study-spam-email-traffic-share
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<blockquote cite="https://lighthousedata.io/data/statista-study-spam-email-traffic-share" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>45%</strong> -- spam email traffic share for marketing emails<br><small>Source: Statista (2024) · <a href="https://lighthousedata.io/data/statista-study-spam-email-traffic-share" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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