The Spam War Rages On

The CAN-SPAM Act has been credited with recent gains in the war on spam; however, it is becoming more apparent that the spammers are beginning to employ a new technique that is destabilizing the Internet’s DNS structure. The technique involves sending mass mailings in the middle of the night from a domain that has not yet been registered. After the mailings go out, the spammer registers the domain early the next morning. The spammers are hoping this will minimize their visibility and make it more difficult to track. The problem arises when the DNS servers on the internet attempt to resolve the domain names, since they do not exist, it causes delays and timeouts on the DNS servers and backups in SMTP message queues. This virtually slows down and stops name resolution.

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