As a Linux server administrator, having a reliable email notification system in place is crucial. Whether you’re dealing with unattended upgrades, monitoring RAID arrays, or any other server-related alerts, getting quick notifications can make a world of difference. Here’s a quick guide to setting up sSMTP, a lightweight and straightforward alternative to postfix or other full-fledged mail transfer agents (MTAs).

Why sSMTP instead of postfix?
sSMTP is lightweight, easy to configure, and perfect for scenarios where you just need outgoing email functionality. It’s particularly well-suited for sending notifications from Linux servers without the overhead of a fully-fledged MTA like postfix.