Topic Last Modified: 2005-05-02

Unsolicited commercial e-mail (spam) is a major problem for many organizations. Spam is costly in a number of ways, from lost user time in sorting and deleting it, to wasted bandwidth and storage space.

To minimize spam, you must combat it on a number of fronts. Therefore, to help you protect your Exchange 2003 environment against spam, this section will:

• Discuss methods for educating your users about spam.
  
• Introduce you to spam-protection features in Outlook 2003 and Outlook Web Access 2003.
  
• Explain the spam confidence level (SCL) infrastructure.
  
• Show you how you restrict Exchange 2003 distribution Lists.
  
• Explain the different types of filtering you can apply in Exchange 2003.