Learn how to implement guaranteed message delivery in distributed systems through an 18-minute conference talk from Devoxx that delves into the transactional outbox and inbox patterns. Explore the critical challenges of maintaining consistent business transactions when network disruptions occur, and discover effective solutions for handling lost events and message duplicates in scaling systems. Master the implementation intricacies of these well-established microservices patterns while understanding common pitfalls and best practices for ensuring reliable communication between distributed components.