How Co-Marketing Partnerships Grew an Email List by 50 Percent

The Email Marketing Podcast with Fexingo: Newsletters, Open Rates, and Subscriber Growth · Jul 28, 2026 · 5m · transcript

In this episode of The Email Marketing Podcast, Lucas and Luna explore how co-marketing partnerships can supercharge email list growth. They break down a real-world example: a project management SaaS company partnered with a remote work consultancy to co-host a webinar. Each brand promoted to their existing lists, and by sharing a joint lead magnet, they grew their combined subscriber base by 50 percent in just one month. Lucas and Luna discuss the key success factors—aligned audiences, clear value propositions, and shared metrics—and explain how to track results with UTM parameters and a…