B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
58%
58% -- click to open rate lift for personalized emails (2026)
Emails with personalized subject lines / personalization achieve 58% better click-to-open rates.
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
58%
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
OptinMonster
Primary
Tier C
https://smashsend.com/blog/personalization-at-scale ↗
Source Article
A B2B SaaS Guide to Personalization at Scale
Let's be honest, "personalization at scale" sounds like another piece of marketing jargon. But what it really means is simple: using technology and data to give every single one of your users a unique, one-to-one experience, automatically.
It's about moving past the generic, one-size-fits-all campai…
Original Research
OptinMonster
· Original study ↗
Methodology
Cited via OptinMonster statistics; original source not named
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
personalized emails: 58% click to open rate lift. Source: OptinMonster (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/personalized-emails-click-to-open-58
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<blockquote cite="https://lighthousedata.io/data/personalized-emails-click-to-open-58" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>58%</strong> -- click to open rate lift for personalized emails<br><small>Source: OptinMonster (2026) · <a href="https://lighthousedata.io/data/personalized-emails-click-to-open-58" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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