Source Authentication Enterprise Edition Stops Spam While Allowing Legitimate Automated Email to Be Delivered.

Business Editors/High-Tech Writers

LOS ANGELES--(BUSINESS WIRE)--June 25, 2003

IT managers can stop spam with this add-in for Exchange Server.

It is first to be fully compatible with all known

challenge/response systems.

Source Authentication(TM) Enterprise Edition, from Block All Spam, Inc., is now available for IT managers who want to have the most effective spam-elimination technology available for Exchange Server, and realize the importance of being fully compatible with all known challenge/response anti-spam systems.

Unlike other anti-spam solutions, which block legitimate automated email, such as newsletters and eCommerce confirmations, this is not an issue with Source Authentication Enterprise Edition. Additionally, due to compatibility with challenge/response anti-spam technology, Source Authentication overcomes the fear of creating mail loops, which hamper email delivery. Source Authentication is not filtering, and is far more effective than the reactive filtering technologies that are currently available. Source Authentication also uses far less system resources, freeing the server to do its main job more efficiently. The software is compatible with Windows Server 2000 and 2003, and Exchange Server 2000 and 2003.

"Our solution works with Windows SMTP Server at the core level," notes Greg Way, president of Block All Spam, Inc. "This approach is more efficient and effective than anti-spam solutions that are installed either as network gateways or at the client level."

Source Authentication Works

Source Authentication technology forces spammers into using equipment and resources most of them do not have. "It raises the stakes well beyond that of filtering because spammers cannot simply falsify some data and force you to receive their junk," says Way. "It is an entirely new approach that solves the problem of Spam today and tomorrow."

How Source Authentication Works

When an email is sent to a server that has Source Authentication Enterprise Edition installed, it is stored, while an authentication message is returned to the sender, simply asking the sender to hit reply and then send. The process is fully contained in the MTA (Message Transport Agent) layer, allowing legitimate mass emailers to automatically reply. Reverse DNS lookup is used to verify the actual domain of the sender. If the sender's address has been spoofed, as spammers will usually do, Source Authentication will identify that, and not forward the email. Once an address has been authenticated, the email is sent to the protected user, and the sender's address is added to a whitelist as a permissible address. The sender never again has to be authenticated. The protected user also can load his list of permitted email addresses into the whitelist so that those senders will never have to be authenticated. This process can be done either by the network administrator or the protected user.

Source Authentication Eliminates the Need and Added Cost of Advanced Filtering

Filters are prone to error. The task assigned to a filter program is nearly impossible. A filtering system is asked to differentiate a spam email from a normal email based on the data the spammer himself provides. The underlying principal is flawed: when bad data comes into an application, the information the application will present is going to be unreliable. Filters make mistakes and delete, or otherwise "hold," valid email incorrectly while sometimes passing spam along to the recipient. Source Authentication solves this problem.

Availability

Source Authentication Enterprise Edition is available now for $1595 (US). 30-day trials of the software are available at www.sourceauthentication.net.

Greg Way, inventor of Block All Spam, founded InfoDial in 1992 and has a history of providing innovative solutions. He pioneered eCommerce with credit card processing and shopping carts in 1995, and turned InfoDial, a communications company, into one of the very first Web hosting companies. He invented the "Internet Check" in 1997. In the years since 1997, he has focused his attention on new Internet solutions including email anti-spam techniques in his effort to eliminate spam from our email accounts.

For further information, go to www.sourceauthentication.net or call 800/925-0921. Block All Spam, Inc. is located at 23705 Vanowen St., Suite 230, West Hills, CA 91307.

Windows Server and Exchange Server are registered trademarks of Microsoft Corp. Source Authentication is a trademark of Block All Spam, Inc. and is a patent-pending technology.