MailSlurp guide agent setup Title: How to Preview Braze Emails Across Gmail, Outlook, iPhone, and Android Description: Run Braze email client testing with MailSlurp. Preview the final campaign across Gmail, Outlook Classic, New Outlook, iPhone, Android, and desktop clients. Canonical URL: https://www.mailslurp.com/guides/braze-device-rendering/ Markdown URL: https://www.mailslurp.com/guides/braze-device-rendering.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.