B
Evidence Grade B
Graded
under review
Safe to Cite
Current
33%
33% -- brand engagement lift from welcome email for email subscribers receiving welcome email (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
33%
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
Invesp
Primary
Tier C
https://www.bigstarcopywriting.com/blog/email-copywriting/how-often-should-you-be-emailing-your-news… ↗
Source Article
How Often Should You Email Your Contact List? Big Star Copywriting
Original Research
Invesp
· Original study ↗
Methodology
Data gathered by Invesp, cited by Big Star Copywriting
Methodology documented
Segmentation
Industrymarketing
RoleContent Marketer
Channelemail
Cite this stat
Plain Text
email subscribers receiving welcome email: 33% brand engagement lift from welcome email. Source: Invesp (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/welcome-email-engagement-lift
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<blockquote cite="https://lighthousedata.io/data/welcome-email-engagement-lift" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>33%</strong> -- brand engagement lift from welcome email for email subscribers receiving welcome email<br><small>Source: Invesp (2026) · <a href="https://lighthousedata.io/data/welcome-email-engagement-lift" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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