The Sakara Life organic meal delivery program is based on a whole-food, plant-rich diet that includes fresh, nutrient-dense, and delicious ingredients. Its nutritional pillars form the basis of every meal that comes to customers' doors.
Sakara uses direct mail postcards to acquire new customers and fuel its growth and recurring revenue.
Source: Who's Mailing What!

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In this best direct mail campaigns example, Vanguard uses a direct mail letter to promote its personal financial advisor service.

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BaubleBar uses a custom promo code to be able to track and attribute the results of its direct mail campaign. See it and other examples.