1st SMTP Server - is a simplest, easy to use SMTP mail relay server. It is used for relaying your email messages to its destinations quickly and easily. Nowadays, many Internet providers are closing their SMTP servers and filtering all the incoming SMTP traffic to fight Spam. They let everybody in from their local network. And filter everybody out who is not. This means that as long as you are using their services, your email client is working fine, but what happens when you go on a business trip or vacation and you want to send an email from an airport or hotel room? In most cases your SMTP server is not accessible to you anymore since you are trying to get to it from outside of your ISP's network.
-Relay your messages, directly to destinations.
-Remote access, use the server to send email from anywhere.
-Your email is secure. Your ISP is not examining your messages.
-Very lightweight and simple. You have virtually no configuration out of the box.
-Minimizes to taskbar. Since you don't have to follow the status of the server, when you minimize the main window, it will be hidden in the small taskbar icon.