B
Evidence Grade B
Graded
under review
Safe to Cite
Current
57.2%
57.2% -- direct mail response rate lift for PPL sustainable direct mail pack campaign (with Dragonfly) (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
57.2%
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
PPL / Dragonfly
Primary
Tier B
http://www.marketreach.co.uk/blog/ultimate-guide-improving-sustainability-mail ↗
Source Article
Ultimate guide to improving the sustainability of mail
Original Research
PPL / Dragonfly
· Original study ↗
Methodology
Single-campaign A/B test: recyclable low-impact paper pack with water-based ink (replacing gold polywrap) tested against the organisation's previous best-performing control pack. Case study result, not aggregate industry data.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
PPL sustainable direct mail pack campaign (with Dragonfly): 57.2% direct mail response rate lift. Source: PPL / Dragonfly (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ppl-sustainable-mail-response-lift
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<blockquote cite="https://lighthousedata.io/data/ppl-sustainable-mail-response-lift" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>57.2%</strong> -- direct mail response rate lift for PPL sustainable direct mail pack campaign (with Dragonfly)<br><small>Source: PPL / Dragonfly (2026) · <a href="https://lighthousedata.io/data/ppl-sustainable-mail-response-lift" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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