Interface: the interface looks very good and is set up professionally. Navigable shortcuts, easy-to-find program options and the non-resizeable window make this very user-friendly.

Functionality: the program is unique in that it supports quite a few different e-mail programs and has the function of keeping away spam by sending a "challenge" message to the sender. The challenge message contains a graphic that asks the recipient to reply with your AntiSpam passcode. This feature helps your program stand out against other spam tools.

Usability: people who receive an enormous amount of spam, but do not get many legitimate e-mails would benefit greatly from this program. Having the option of an "allowed" list is also useful.