This article will be showing you how to set up Lightmeter, which is an open-source self-hosted mail server monitoring tool, so you can know what’s going on with your Linux mail server. Lightmeter Features Easy-to-use web-based interface Mail server downtime monitoring RBL (Real-time Block Lists) monitoring Real-time detection of blocked emails by other SMTP servers … Continue reading Linux Mail Server Monitoring with Lightmeter (Debian, Ubuntu)