MailSlurp guide agent setup Title: Email read (opened seen settings) Description: Effortlessly manage read status with MailSlurp: mark emails as read or unread manually or fetch only unread ones with the unreadOnly flag. Canonical URL: https://www.mailslurp.com/guides/email-read-opened-seen-settings/ Markdown URL: https://www.mailslurp.com/guides/email-read-opened-seen-settings.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.