B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
17%
17% -- reduction in unsubscribes from name in subject line for Email marketing campaigns (2026)
Adding the recipient's name to an email subject line reduced unsubscribes by 17% in the main experiment of a Stanford working paper.
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Lighthouse Research Team
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Evidence graded
Value
17%
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
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Stanford
Primary
Tier A
https://ecommerceboost.io/uncategorized/email-marketing-for-customer-acquisition/ ↗
Source Article
Email Marketing for Customer Acquisition
81% of SMBs use email as their primary customer acquisition channel, and 59% of consumers say marketing emails influence their purchase decisions, which is why email marketing for customer acquisition has moved from support tactic to revenue system in serious ecommerce stacks (email marketing stats …
Original Research
Stanford
· Original study ↗
Methodology
Stanford working paper main experiment
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Email marketing campaigns: 17% reduction in unsubscribes from name in subject line. Source: Stanford (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/stanford-name-subject-line-unsubscribes
HTML Embed
<blockquote cite="https://lighthousedata.io/data/stanford-name-subject-line-unsubscribes" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>17%</strong> -- reduction in unsubscribes from name in subject line for Email marketing campaigns<br><small>Source: Stanford (2026) · <a href="https://lighthousedata.io/data/stanford-name-subject-line-unsubscribes" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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