Anti Spam for Qmail using Sender Authentication Technology

Anti Spam Software using Sender Authentication Technology (S.A.T.) to block unwanted email on Qmail based server on Unix. Whenever someone emails you for the first time, the sender will automatically receive an email requesting authentication. This email will simply direct the new sender to a web page where they will enter a code. Once this is done, they're authenticated, the email they sent is removed from the queue and immediately delivered, and the authentication need not be repeated when subsequent email is sent by that person. In addition to the automation provided by Sender Authentication Technology, there is a login for user to manually add email addresses, hostnames, IP addresses, and Class C network addresses to allow and block databases. Will have a user-friendly interface, entering the information, and clicking a button. Must be designed for web host/multi-users to protect all the users on a server. This program will be similar to postmasterpro at <[login to view URL]> but will work on Qmail. Postmaster pro only works with SMTP. Please download and check the postmaster pro demo for the login and user interface. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Unix running Qmail.