MailSlurp guide agent setup

Title: Plain-Text Email: Check the Version Behind Your HTML Campaign
Description: Test plain-text emails for stale offers, missing links and broken personalization. Includes Mailchimp and HubSpot checks for marketing teams.
Canonical URL: https://www.mailslurp.com/guides/plain-text-email/
Markdown URL: https://www.mailslurp.com/guides/plain-text-email.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.