Free SMTP Server
As the name implies, Free SMTP Server is a 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.
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. There is also a portable edition available.