MailSlurp guide agent setup Title: Sender Score Explained: How To Read It Without Misdiagnosing Deliverability Description: Learn what Sender Score measures, what a low score usually means, where it falls short, and how to use it with inbox placement and authentication checks. Canonical URL: https://www.mailslurp.com/guides/sender-score/ Markdown URL: https://www.mailslurp.com/guides/sender-score.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.