MailSlurp guide agent setup

Title: New Outlook for Windows email support: how it differs from classic Outlook (tested 2026)
Description: Does new Outlook still render email like Word? Test emails in new Outlook, classic Outlook and Outlook on the web show what changed, with screenshots.
Canonical URL: https://www.mailslurp.com/guides/email-client-support/new-outlook/
Markdown URL: https://www.mailslurp.com/guides/email-client-support/new-outlook.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.