B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Aging
16%
16% -- email inbox failure rate for marketing emails (2024)
16% of marketing emails fail to reach the inbox at all.
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
16%
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
amplispot.com
Primary
Tier C
https://www.amplispot.com/blogs/avoiding-spam-filters-building-trust-ensuring-your-emails-always-lan… ↗
Source Article
Avoiding Spam Filters And Building Trust By Amplispot
Original Research
amplispot.com
· Original study ↗
Methodology
Cited from Gmail and Outlook 2024 deliverability guidelines; secondary source
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
marketing emails: 16% email inbox failure rate. Source: amplispot.com (2024). Via Lighthouse Intelligence -- https://lighthousedata.io/data/marketing-emails-not-reaching-inbox-2024
HTML Embed
<blockquote cite="https://lighthousedata.io/data/marketing-emails-not-reaching-inbox-2024" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>16%</strong> -- email inbox failure rate for marketing emails<br><small>Source: amplispot.com (2024) · <a href="https://lighthousedata.io/data/marketing-emails-not-reaching-inbox-2024" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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