Infrastructure First: Why Transactional Email Provider Selection Demands Different Criteria

Transactional email is critical infrastructure—not marketing—where deliverability failures directly impact user trust and revenue. Most email platforms optimize for marketing features (templates, lists), but transactional workloads demand different priorities: low-latency delivery, comprehensive bounce diagnostics, robust security controls, and pricing that scales with traffic spikes. Choosing the right provider requires testing infrastructure metrics, not evaluating feature checklists.