When most people install a free software mail transport agent (MTA) they plumb for Postfix, Exim, qmail or Sendmail. Whilst these are all fine, they can be a little over the top for some smaller systems or systems where all you need is some kind of local MTA functionality. In these cases many people will install their favourite MTA anyway - but there are more lightweight alternatives.

Qmailtoaster is a project that aims to make the installation of Qmail onto RPM based systems a snap. All of the packages are distributed in source RPMs so building the packages for your particular distro and architecture is as easy as running a script or a simple command for each package.

Sendmail Inc, the company behind the Sendmail Consortium and open source Sendmail mail transfer agent (MTA), has announced that it set record results for is fiscal year 2009

Postfix is an attempt to provide an alternative to the widely-used Sendmail program. Dovecot is an open source IMAP and POP3 server for Linux/UNIX-like systems, written with security primarily in mind. SquirrelMail is a standards-based webmail package written in PHP.

This tip explains how server virtualization will benefit Linux and Unix operating system adoption but will most likely harm Windows Server adoption by relieving the one-operating-system-to-one-server modus operandi. You'll review the drawbacks of using Windows operating systems and the rewards that virtualization offers to not only IT architects but end-users and application vendors and learn how these factors will combine and affect the current use of Linux, Unix and Windows operating systems.

Anti-virus software has become a critical aspect of computing at all levels. Although to this point it seems the only operating system that is really targeted by viruses is Microsoft Windows, the time will come when UNIX-based operating systems will be equally as marked.

This guide will help you easily set up an email server on Ubuntu using Qmail as MTA, OpenLDAP as a back-end for users, and Courier IMAP for IMAP server.

Whenever people thinks of a free operating system (if they do), the odds are that they will think of Linux, a clone of UNIX from 1991. They also might think of one or more of the BSDs, UNIX-derivatives dating back to the early ’80s. Let’s face it, though—UNIX is pretty boring. It was great for a PDP-11, and it gets the job done now, but it’s not exactly exciting.

For the last 40 years, Unix operating systems have helped to power mission-critical IT operations around the globe. Now, as Unix enters middle age, its backers are busily developing the new specifications that they hope will carry the OS forward into the next age of computing