This is local SMTP server program.

Advanced SMTP Server is a system-tray local SMTP server program for Windows. It lets you send email messages directly from your computer to recipient mailboxes. With this tool you are able to bypass the ISP’s SMTP server. That will let you have even more security and privacy. This program provides a subscription-based mass mailer and the program can be used as a relay server for sending requested newsletters, distributing messages to different mailing lists, sending notifications to your customers, as well as for sending personalized messages. Most of the mail clients work with this tool. These include Outlook Express, Outlook, Eudora, etc. Thus, in all likelihood, the email program you already use can be connected to the server easily. You just have to specify "localhost" instead of your current SMTP host.

Advanced SMTP Server establishes dozens of SMTP connections, and gets the most out of your Internet connection. The user interface of the program is simple and even first time users should not have any problem using it. In actual trial use there were problems in download and installing the program. The tool does not seem to be a finished product. It was very difficult to completely exercise the program and make out if everything works fine. It becomes very difficult to rate it then. We are constrained to leave at 1 star rating.