B
Evidence Grade B
Graded
under review
Safe to Cite
Current
63%
63% -- customer churn rate for brands not tailoring emails to customers' interests and needs (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
63%
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
75
Source Trust
60
Citation Chain
60
Independence
30
Methodology
45
Freshness
95
Source
SendX
Primary
Tier B
https://www.sendx.io/blog/email-marketing-mistakes ↗
Source Article
10 Crucial Email Marketing Mistakes to Avoid
“Email marketing is dead!”
That’s what some marketers would say.
The pace of technology’s innovation as well as the number of resources that are available to marketers today is extraordinary.
Table of Contents
Is Email Marketing Really Dead?
In 2015 alone, VentureBeat said that there are almost 2,00…
Original Research
SendX
· Original study ↗
Methodology
Percentage of current customers who will stop buying or shopping from brands that don't tailor their emails.
Methodology documented
Segmentation
Industrysaas
Cite this stat
Plain Text
brands not tailoring emails to customers' interests and needs: 63% customer churn rate. Source: SendX (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-marketing-mistakes-2
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<blockquote cite="https://lighthousedata.io/data/email-marketing-mistakes-2" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>63%</strong> -- customer churn rate for brands not tailoring emails to customers' interests and needs<br><small>Source: SendX (2026) · <a href="https://lighthousedata.io/data/email-marketing-mistakes-2" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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