B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
83%
83% -- inbox placement rate for Marketing emails (industry average) (2026)
The industry average inbox placement rate for marketing emails is between 83% and 85%.
- Reported as a range of 83% to 85% in text, with 84% used in the comparison table
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
83%
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
aurorasendcloud.com
Primary
Tier C
https://www.aurorasendcloud.com/zh-tw/blog/ai-email-delivery-platform ↗
Source Article
AI 郵件製作與發送平台｜Aurora SendCloud
Original Research
aurorasendcloud.com
· Original study ↗
Methodology
Source reports a range of 83%-85%; midpoint 84% extracted. Article also restates this as roughly 1 in 6 marketing emails failing to reach the inbox. No named source or measurement period given.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Marketing emails (industry average): 83% inbox placement rate. Source: aurorasendcloud.com (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-industry-average-inbox-placement-rate
HTML Embed
<blockquote cite="https://lighthousedata.io/data/email-industry-average-inbox-placement-rate" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>83%</strong> -- inbox placement rate for Marketing emails (industry average)<br><small>Source: aurorasendcloud.com (2026) · <a href="https://lighthousedata.io/data/email-industry-average-inbox-placement-rate" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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