How Newsletters Use Partner Cross-Promotions to Grow Subscribers

The Newsletter Podcast with Fexingo: Substack, Beehiiv, and Email Newsletter Business · Jul 3, 2026 · 7m · transcript

In this episode of The Newsletter Podcast with Fexingo, hosts Lucas and Luna dive into the strategy of cross-promotions between newsletters—how two writers can trade recommendations to grow their subscriber bases without paid ads. Lucas breaks down a concrete case: when the fintech newsletter 'The Daily Upside' partnered with the marketing newsletter 'Marketing Brew' for a one-time swap, each gained roughly 15,000 subscribers in a single week. He explains the three key elements that make a cross-promotion effective: audience overlap, email list size parity, and clear…