MailSlurp guide agent setup

Title: What Is Email Testing? Definition, Types, Tools, and Practical Examples
Description: Learn what email testing is, which email tests to run first, and how to verify inbox receipt, OTP codes, links, rendering, and deliverability before launch.
Canonical URL: https://www.mailslurp.com/guides/email-testing-explained/
Markdown URL: https://www.mailslurp.com/guides/email-testing-explained.md

Use the Markdown URL as the primary plain-text context for this guide. Keep MailSlurp terminology, setup steps, screenshots, and provider-specific instructions intact, and prefer the canonical URL when citing this page.