B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
23%
23% -- marketing email spam placement rate for Marketing emails globally (2026)
23% of marketing emails land in spam purely because of their content and low engagement.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
23%
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
smashsend.com
Primary
Tier C
https://smashsend.com/blog/emails-going-to-spam ↗
Source Article
Emails Going to Spam: Why emails going to spam Happens and How to Fix
It's a feeling every marketer knows and dreads. You've just poured hours into crafting the perfect email campaign, you hit send, and then… crickets. A quick check reveals the horrible truth: your messages are landing straight in the spam folder, completely invisible to your audience.
This isn't just…
Original Research
smashsend.com
· Original study ↗
Methodology
Share of marketing emails landing in spam purely because of content and low engagement; no explicit date or named primary source in article, collection year used
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Marketing emails globally: 23% marketing email spam placement rate. Source: smashsend.com (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/marketing-emails-spam-content-low-engagement
HTML Embed
<blockquote cite="https://lighthousedata.io/data/marketing-emails-spam-content-low-engagement" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>23%</strong> -- marketing email spam placement rate for Marketing emails globally<br><small>Source: smashsend.com (2026) · <a href="https://lighthousedata.io/data/marketing-emails-spam-content-low-engagement" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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