Email and customer data infrastructure

Understand the infrastructure behind customer communications, from authentication and sending streams to consent withdrawal and inbox measurement. These guides connect email operations to customer data architecture. Start with sender authentication, then consider how marketing and transactional messages should be separated. The suppression guide follows a withdrawal through the systems that must stop sending. Platform comparisons explain operating responsibilities as well as features. Delivery acceptance and inbox placement measure different events, so the measurement guide keeps them separate. Use the references and check dates to verify current mailbox-provider requirements before changing a sending programme. These resources are for teams that own customer communications and need a clear account of data movement, consent, monitoring and operational control.