MailSlurp guide agent setup

Title: How to preview an email in Apple Mail
Description: Preview the same delivered email in Apple Mail on macOS, iPhone, and iPad and check layout, images, buttons, typography, and responsive behavior.
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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.