B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
10x
10x -- unsubscribe to spam complaint ratio for email marketing industry (2026)
A healthy unsubscribe-to-spam-complaint ratio in email marketing is at least 10:1.
- Prescribed target benchmark rather than an empirical measurement
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
10x
Unit
Ratio
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
Aragil
Primary
Tier B
https://www.aragil.com/blog/the-email-engagement-playbook ↗
Source Article
The Email Engagement Playbook: A Practitioner's Guide to Revenue-Driving Email
Original Research
Aragil
· Original study ↗
Methodology
Agency practitioner benchmark
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
email marketing industry: 10x unsubscribe to spam complaint ratio. Source: Aragil (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/unsubscribe-spam-complaint-ratio
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<blockquote cite="https://lighthousedata.io/data/unsubscribe-spam-complaint-ratio" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>10x</strong> -- unsubscribe to spam complaint ratio for email marketing industry<br><small>Source: Aragil (2026) · <a href="https://lighthousedata.io/data/unsubscribe-spam-complaint-ratio" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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