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Studies and Research

Data that speaks for direct mail.

Industry studies, statistics and research showing the real impact of physical mail on conversions, engagement and return on investment.

11 studies
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23. April 2026

CMC & Deutsche Post Print Mailing Study 2025: Physical Mailers Activate Existing Customers with 4.1% Conversion Rate

A large-scale study of 43 online shops proves that physical direct mail remains a highly effective tool for activating existing customers in 2025.

Data & Stats