Exim

Exim is a super handy open-source software that you can download for free! It works as a command-line tool and acts like an MTA (Message Transfer Agent) mainly for GNU/Linux and UNIX-like systems. This software is great for anyone who needs to manage emails on their Internet-connected UNIX/Linux machines.

What is Exim?

Originally created at the University of Cambridge, Exim can easily step in to replace the Sendmail MTA software. While it’s similar to Smail 3, it has its own unique setup. So, if you're switching from one of those, you might need to tweak some settings.

How Flexible is Exim?

One of the cool things about Exim is its flexibility in routing email. It’s packed with features that help check incoming mail effectively. If you're curious about how to use it, there’s plenty of detailed documentation available on its official homepage.

Installing Exim Made Easy

If you're running a GNU/Linux system, installing Exim is a breeze! Since it's such a popular project, you’ll typically find it in the main repositories of major distributions. The best way to install it is through your Software Center app.

Optimizing Your Installation

If you want to get fancy and optimize Exim for your specific hardware or operating system—or if the latest version isn’t available in your distro—you can grab the source package for free from Softpedia.

No Command-Line Interaction

You won’t be using the command line directly with Exim since it's usually called by Mail User Agents. But don’t worry! You can check out its official documentation for various arguments and options that let you control what it does when triggered. Don’t forget to peek at its man page too!

The Tech Behind Exim

Diving into the tech side, you'll see that Exim is written in C programming language, making it super fast and light on resources. Plus, it works well with both 64-bit and 32-bit architectures!