The Direct Mail Playbook for Commerce Media Networks

Postie is the leading end-to-end direct mail campaign platform, steeped in data science and purpose-built for empowering marketers with smarter targeting, simpler execution and stronger measurement. DTC brands and retailers have run more than 33,000 campaigns with Postie with an average ROAS of 1,382%.

What's inside?

Amazon and Walmart are swallowing 89% of retail media budgets. If your Commerce Media Network looks like every other network, brands have little reason to spend more with you.

This playbook shows CMN operators how to add direct mail as a differentiated offsite channel — one that uses the same CRM and loyalty data already powering your network, but delivers into households with response rates that leave digital in the dust (4.4% vs. 0.12% for email).

Inside, you'll find the market case for why 2026 is the right moment to expand your CMN inventory, a four-step planning framework covering outcomes, audience strategy, channel integration, and timing, two ready-to-launch plays — loyalty activation and high-intent retargeting sequences — with a real Postie client cadence, and a measurement guide for proving incrementality in the language brands and finance teams actually care about.

Direct mail gives your CMN something the biggest players don't yet offer. This is the blueprint for building it.