A focused reading path

Email testing articles

Understand the boundary between an inbox interface and real mail delivery.

Read these guides together

Use the architecture guide to identify the layers, then use the QA workflow to design a meaningful test. Fictional fixtures are right for visual review; delivery testing needs a controlled receiving system.

Put the reading into practice

Use the articles below to identify the relevant boundaries for your task. Compare the actual behavior of a service with what you need to preserve: access, confidentiality, future messages, or a controlled testing result. For a hands-on introduction, the local inbox demo lets you inspect sample states without receiving real mail.