Blog
Retention and monetisation
Activation, habits, pricing and keeping the customers you won.
Articles
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Retention and monetisation Gmail, Yahoo and Outlook.com sender requirements: the 2026 checklist
SPF, DKIM, DMARC, alignment, one-click unsubscribe and spam-rate limits for Gmail, Yahoo and Outlook.com, checked against each provider's own pages, with a checklist. -
Retention and monetisation Pricing AI products: seats, usage, credits or outcomes
AI features carry a real cost every time someone uses them. How to choose between seats, usage, credits and outcome pricing, protect gross margin, and test changes safely. -
Retention and monetisation Retention is the cheapest growth channel: the maths, the leaks, what to fix first
A small cut in churn raises LTV, shortens cohort payback and lifts the ceiling on your customer base. Worked maths, a way to find the leak, and what to fix first.
New articles, once a week
The newest article, one practical growth tactic and any new free tools. No fluff.