B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Dated
15%
15% -- email undelivered rate for email marketing programs (2021)
Between 15% and 20% of marketing emails end up in junk folders or remain undelivered on average.
- Reported as a range of 15-20%
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
15%
Unit
Percentage
Data Vintage
2021
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
Return Path
Primary
Tier C
https://outfunnel.com/email-deliverability/ ↗
Source Article
Email Deliverability: Ultimate Guide and 15 Ways to Improve Deliverability
Last updated: April 21, 2021
First, a depressing stat: 15-20% of your email marketing efforts go to waste. This is the percentage of your emails that end up in junk folders or remain “undelivered” on average, based on data from Return Path.
The good news is that there are things you can do for your …
Original Research
Return Path
· Original study ↗
Methodology
Range 15-20%; midpoint used. Based on Return Path data as cited by Outfunnel.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
email marketing programs: 15% email undelivered rate. Source: Return Path (2021). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-undelivered-rate-return-path
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<blockquote cite="https://lighthousedata.io/data/email-undelivered-rate-return-path" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>15%</strong> -- email undelivered rate for email marketing programs<br><small>Source: Return Path (2021) · <a href="https://lighthousedata.io/data/email-undelivered-rate-return-path" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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