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Securing Your Server: Shut the Door on Spam

Name: Securing Your Server: Shut the Door on Spam
Date: March 29, 2004
Type: Information
 
Description: If your organization handles lots of Internet traffic every day, both to and from your clients and customers. The settings of your network servers may open your system to misuse. If your mail server maintains an open door to the Internet, known as an open relay, someone could access it and pass unsolicited commercial email (spam) through it. And if your proxy server is open, a spammer could use it to connect to your mail server and send bulk email anonymously. Not only can these abuses overload your server, they also could damage your organization's reputation. That's because it will appear that your system sent the spam.
 
Recommended Action: Read the entire article on Open Relays and Open Proxy Servers at http://www.ftc.gov/bcp/conline/pubs/buspubs/secureyourserver.htm.
  
From:
The Federal Trade Commission