C
Evidence Grade C
Graded
under review
Use with Hedging
Current
45%
45% -- birthday email open rate for birthday emails (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
45%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
C
Moderate quality evidence
Useful directional data with some methodological gaps. Treat as indicative rather than definitive -- corroborate before citing in formal research.
Score breakdown
Extraction
50
Source Trust
50
Citation Chain
90
Independence
30
Methodology
30
Freshness
92
Sources (4)
Martech Alliance
Primary
Tier C
https://www.martechalliance.com/stories/5-top-examples-of-customer-re-engagement-emails-and-why-they… ↗
Source Article
Five Examples of Customer Re-engagement Emails (and Why They Work)
Hey, have you been...distanced lately? Not that we noticed haha. I mean, was it something we did? Something we said?
Because we can't picture our sad, sad lives without you. Did we come across too strong? Please come back. Here's 10% off some frozen yogurt after with three purchases.
Businesses lose…
Also cited by
forbes.com
https://www.forbes.com/
2026-08-18
brevo.com
https://www.brevo.com/
2026-08-18
2026-08-13
Original Research
Martech Alliance
· Original study ↗
Segmentation
Industrymarketing
Cite this stat
Suggested hedging: According to limited, single-source data, based on claims without stated methodology, with unverified sample sizes...
Plain Text
birthday emails: 45% birthday email open rate. Source: Martech Alliance (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/birthday-email-open-rate
HTML Embed
<blockquote cite="https://lighthousedata.io/data/birthday-email-open-rate" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>45%</strong> -- birthday email open rate for birthday emails<br><small>Source: Martech Alliance (2026) · <a href="https://lighthousedata.io/data/birthday-email-open-rate" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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