B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
32%
32% -- click rate lift for Subject lines with first name (2026)
Subject lines with a first name can drive up to a +32% lift in clicks.
- Cited as an external benchmark
- Reported as an upper bound (up to +32%)
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
32%
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
deathtocoldemails.com
Primary
Tier C
https://deathtocoldemails.com/email-personalization-tools/ ↗
Source Article
Email Personalization Tools in 2026: What Actually Works | Death to Cold Emails
Tool Guide
Email Personalization Tools in 2026
By Peter Korpak · 11 min read · Updated February 2026
The best email personalization tools depend on your workflow: Smartwriter.ai for natural first lines, Lyne.ai for scale, Warmer.ai for depth, Saleshandy for built-in sequencing + data, and HubSpot/Kl…
Original Research
deathtocoldemails.com
· Original study ↗
Methodology
Cited as external benchmark (up to +32%)
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Subject lines with first name: 32% click rate lift. Source: deathtocoldemails.com (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/first-name-subject-line-click-lift-32
HTML Embed
<blockquote cite="https://lighthousedata.io/data/first-name-subject-line-click-lift-32" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>32%</strong> -- click rate lift for Subject lines with first name<br><small>Source: deathtocoldemails.com (2026) · <a href="https://lighthousedata.io/data/first-name-subject-line-click-lift-32" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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