MailSlurp documentation agent setup

Title: Device previews
Description: Review how email renders across devices and clients before signing off on a send.
Canonical URL: https://www.mailslurp.com/docs/device-renders/
Markdown URL: https://www.mailslurp.com/docs/device-renders.md

Use the Markdown URL as the primary plain-text context for this page. Keep API examples and MailSlurp terminology intact, and prefer the canonical URL when citing this page.