Nullmailer

Nullmailer is a lightweight, open-source, and completely free command-line tool made with C++. It’s designed for GNU/Linux and UNIX-like systems to replace your default mail transport agent (MTA). Pretty neat, right?

What Can Nullmailer Do?

This software can easily swap out popular MTAs like Sendmail and qmail. It's built to work as a relay-only MTA, which means it connects with a fixed set of smart relays. The best part? It’s super easy to configure, extend, and it's secure too!

Installing Nullmailer on Linux

If you want to install this software on your GNU/Linux system, start by downloading the latest version from the official website or check it out on Softpas. Save the archive wherever you like, unpack it, and fire up your favorite Linux terminal emulator.

Getting Started in the Terminal

In the terminal window, use the ‘cd’ command to go to where you unpacked the files. Then type in “./configure && make” (without quotes) to set everything up for your distribution and hardware.

Optional Security Features

While you're configuring things, you can add support for TLS (Transport Layer Security) and SSL (Secure Sockets Layer) by including the "--enable-tls" option when you run ./configure (like this: ./configure --enable-tls). Oh! And don’t forget that you'll need to create a 'nullmail' user and group on your system too.

A Peek Under the Hood

If we take a quick look at Nullmailer’s code, we see it’s all written in C++. You can grab its source code as a tar.gz file or check it out on GitHub. Need help setting it up? You’ll find detailed instructions in the HOWTO file inside that source tarball.

If you're eager to get started with Nullmailer, head over here for more details: Download Nullmailer!