https://retentionmarketers.com/ Retention marketing guides, email marketing tool explainers, and field notes for people doing the work. en-GB Thu, 20 Aug 2026 00:00:00 GMT https://retentionmarketers.com/how-is-customer-retention-rate-calculated/ https://retentionmarketers.com/how-is-customer-retention-rate-calculated/ Klaviyo's own example gives 64%, dividing repeat buyers by one-time buyers. Divide the same repeat buyers by all 92,000 customers and it is 39%. Seven formulas answer the question. Explainer Wed, 19 Aug 2026 00:00:00 GMT https://retentionmarketers.com/what-is-ai-email-marketing/ https://retentionmarketers.com/what-is-ai-email-marketing/ AI gets applied at six points in an email programme, and the vendor documentation is precise about the mechanical ones and silent about the decisions. What the help pages promise, what they refuse, and where the automation stops. Explainer Fri, 14 Aug 2026 00:00:00 GMT