MailSlurp guide agent setup

Title: Java Send Email SMTP Guide (Jakarta Mail + Production Checklist)
Description: Learn Java SMTP email sending with Jakarta Mail, authentication, TLS settings, and testable workflows for transactional and QA-critical mail flows.
Canonical URL: https://www.mailslurp.com/guides/smtp/java-send-email-smtp/
Markdown URL: https://www.mailslurp.com/guides/smtp/java-send-email-smtp.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.