SMTP Server

SMTP Server (Simple Mail Transfer Protocol) is a core email communication service used to send, relay, and route emails between servers and clients. It enables reliable delivery of system notifications, application emails, and monitoring alerts, ensuring timely communication across local and internet-based networks.

Features of SMTP Server:

• Reliable email sending and relay for applications and system services.
• Supports secure email transmission using TLS encryption.
• Lightweight and efficient mail transfer suitable for servers and cloud environments.
• Can be integrated with monitoring tools for alert notifications.
• Command-line based management with detailed logging and troubleshooting.

To check the version of the SMTP Server (Postfix), run the following command:

$postconf mail_version

Disclaimer: The SMTP Server is provided “as is” under applicable open-source licenses. Users are responsible for proper configuration, security, and access control, including hostname setup, TLS configuration, and relay restrictions. Misconfiguration may result in email delivery issues or security risks. It is recommended to follow best practices and official documentation when deploying an SMTP server in production environments.