B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
30%
30% -- unsubscribe rate reduction for Email campaigns matching send frequency to purchase frequency (2026)
Matching email frequency to purchase frequency reduces unsubscribe rates by 30% to 50%.
- Reported as a range of 30-50%
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
30%
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Klaviyo
Primary
Tier C
https://www.peasy.nu/blog/how-to-use-segmentation-to-create-smarter-email-campaigns ↗
Source Article
How to use segmentation to create smarter email campaigns
How to use segmentation to create smarter email campaigns
Master email segmentation strategies that deliver relevant messages to specific customer groups, dramatically improving engagement and conversion rates.
Email segmentation divides subscriber lists into groups based on shared characteristics, …
Original Research
Klaviyo
· Original study ↗
Methodology
Source reports range 30-50%; midpoint used.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Email campaigns matching send frequency to purchase frequency: 30% unsubscribe rate reduction. Source: Klaviyo (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/klaviyo-frequency-matched-unsubscribe-drop
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<blockquote cite="https://lighthousedata.io/data/klaviyo-frequency-matched-unsubscribe-drop" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>30%</strong> -- unsubscribe rate reduction for Email campaigns matching send frequency to purchase frequency<br><small>Source: Klaviyo (2026) · <a href="https://lighthousedata.io/data/klaviyo-frequency-matched-unsubscribe-drop" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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