References

External material mirrored into the bundle as first class concepts, plus the meta concept describing the bundle itself. These are the platform behaviours, research lineages, legislation and terminology the operational and structural concepts cite. Broken or partial coverage is expected: these are reference surfaces, not exhaustive bibliographies.

About

• About this bundle - what OKF is, where this content comes from and how to navigate it.

Platform behaviour and research

• Platform interventions - the dated, citable platform interventions on email and push that double as natural experiments.
• Email intelligence research - the Yahoo and Google extraction, classification and summarisation lineage.
• Notification and decisioning research - the published notification systems and the agentic messaging and uplift literature.

Compliance and terms

• Legislation and compliance - CAN-SPAM, GDPR, UK GDPR, PECR, CASL and CCPA, with a practical minimum.
• Tracking and measurement consent - why open and click tracking is a separate consent question from the right to send, plus the 2026 French and Italian rulings on email tracking pixels.
• Glossary - the working vocabulary of lifecycle and CRM marketing.