What actually cuts through 75k unreads ✂️

Q: Calculate lifetime value by subscriber source using ChatGPT to match email lists with buyer data, as

Calculate lifetime value by subscriber source using ChatGPT to match email lists with buyer data, as LTV can vary from $0.50 to $50 depending on acquisition channel.

Marketing Against the Grain·Monday, April 6, 2026·1 min read

Marketing Technology

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AI Summary

Matt McGarry, founder of GrowLetter and former growth marketing manager at The Hustle, shares three key strategies for effective email newsletters. He emphasizes treating newsletters as products rather than content channels, increasing engagement through strategic hyperlinks, and calculating lifetime value by subscriber source to optimize acquisition spending.

Key Facts

✓Think of newsletters as products that solve specific problems rather than content distribution channels, like 1440 Media delivering comprehensive news in under five minutes.

✓Add more hyperlinks through curated sections and promotional content to boost engagement and deliverability, with 10-20 links being the optimal range according to Matt McGarry.

✓Calculate lifetime value by subscriber source using ChatGPT to match email lists with buyer data, as LTV can vary from $0.50 to $50 depending on acquisition channel.

Contrarian Angle

Newsletter as Product Strategy

Treating email newsletters as standalone products rather than content distribution channels

Goes against the common practice of using newsletters as content repurposing channels

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