Portable Free SMTP Server

This is the portable edition of Free SMTP Server. As the name implies, the software application can be used instead of the ISP's SMTP server to send emails from your computer.

It supports most email clients, such as Microsoft Outlook, and provides users with a more secured environment when it comes to their sensitive data.

Since this is a portable piece of kit, installing Free SMTP Server is not a requirement. You can simply extract the archive contents to any location on the hard drive and directly run the executable file.

As an alternative, you can store the app on a USB flash drive or similar storage unit, and run the executable file on any computer. This way, you can keep Free SMTP Server in your pocket whenever you're on the move.

More importantly, the Windows Registry area is not updated with new entries, and no files are left behind on the hard drive after removing the app.

The interface of the application is made from a standard window with a plain layout. Free SMTP Server does not come packed with a wide range of configuration options. The tool automatically displays the active connections on the predefined port, via the selected DNS server.

Users can easily change these settings from the Options screen. Instead of the automatic detection mode, you can specify a preferred DNS server. But you may also select another port, instead of the standard 25 one.

In order to use this SMTP server, you simply need to connect through the email client by using the word "localhost" instead of the current SMTP host. From this point on, you can send your messages or newsletters under normal circumstances. The only difference is that the Internet connection is now optimized, thanks to Free SMTP Server.

The simple-to-use application runs on a very low quantity of CPU and system memory, so it doesn't put a strain on the computer's overall performance. It has a good response time and includes user documentation. We have not come across any problems throughout our testing, since Free SMTP Server did not hang, crash or pop up error dialogs.

On the other hand, the app has not been updated for a very long time. Other than that, Free SMTP Server should be figured out by users of any level of experience, thanks to its overall simplicity.