MailSlurp guide agent setup Title: How to Preview GetResponse Emails in Gmail, Outlook, iPhone, and Android Description: Send a GetResponse test email to MailSlurp and preview the delivered campaign across Gmail, Outlook, Apple Mail, iPhone, iPad, Android, desktop, light mode, and dark mode. Canonical URL: https://www.mailslurp.com/guides/getresponse-device-rendering/ Markdown URL: https://www.mailslurp.com/guides/getresponse-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.