MailSlurp guide agent setup

Title: Email Images Not Showing? Keep Your Offer and CTA Readable
Description: Tell blocked pictures from broken image links, see a real missing-image test, and make your campaign understandable before customers download the artwork.
Canonical URL: https://www.mailslurp.com/guides/test-emails-with-images-blocked/
Markdown URL: https://www.mailslurp.com/guides/test-emails-with-images-blocked.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.