B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
4
4 -- roas for national specialty retailer appended email segment (Q4 campaign) (Q4 2025)
The first email campaign sent to an appended segment of 52,000+ deliverable records generated a 4.1x ROAS against the direct mail baseline for a national specialty retailer.
- Case study quote from VP of Retention Marketing
- ROAS measured relative to a direct mail baseline
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
4
Unit
Multiple
Data Vintage
Q4 2025
Entity
Sample Size
180,000
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
60
Freshness
95
Source
EmailDataGroup
Primary
Tier B
https://www.emaildatagroup.net/b2c-email-appending ↗
Source Article
B2C Email Appending
You have the customer. You don't have their email. That's revenue walking out the door.
Your CRM contains people who bought from you, signed up at your store, or responded to a past campaign. You know their name. You know their address. But their email? Gone, outdated, or never collected.
Most brand…
Original Research
EmailDataGroup
· Original study ↗
Methodology
Vendor-published client case study: email append on 180,000 records adding 52,000+ deliverable emails
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
national specialty retailer appended email segment (Q4 campaign): 4 roas. Source: EmailDataGroup (Q4 2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-append-q4-roas-case
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<blockquote cite="https://lighthousedata.io/data/email-append-q4-roas-case" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>4</strong> -- roas for national specialty retailer appended email segment (Q4 campaign)<br><small>Source: EmailDataGroup (Q4 2025) · <a href="https://lighthousedata.io/data/email-append-q4-roas-case" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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