MailSlurp guide agent setup

Title: Email Deliverability Best Practices for Reliable Inbox Placement
Description: Follow practical email deliverability best practices for sender authentication, recipient quality, inbox placement, spam control, and release-safe workflow testing.
Canonical URL: https://www.mailslurp.com/guides/email-deliverability-best-practices/
Markdown URL: https://www.mailslurp.com/guides/email-deliverability-best-practices.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.