Qmail is an old, well-written, reliable security friendly email server that has proudly stood the test of time and corrosive use. Architecturally solid, with its components divided across workflow with numerous configuration files, the beginner system administrator needs a gentle push up the slopes of learning. Qmail Quickstarter: Install, Set Up, and Run your own Email Server by Kyle Wheeler and published by PACKT has been concisely written for the learning task at hand.

The book’s cover