MailSlurp guide agent setup

Title: How to choose the perfect SMTP port
Description: Which SMTP port should you use? Learn about popular options like 587, 465, 25, and 2525 and why choosing the right one matters for email delivery.
Canonical URL: https://www.mailslurp.com/guides/choosing-the-right-smtp-port/
Markdown URL: https://www.mailslurp.com/guides/choosing-the-right-smtp-port.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.