Today a wide range of anti-spam products is available, from solutions designed for individual end users to products for large network operators supporting many thousands of mailboxes.

There are a number of features organizations should look for when evaluating an anti- spam product, such as high spam capture and low false-positive rates. Anti-spam solutions should also allow users to define their own whitelists and spam tolerance levels.

Considerations such as those just mentioned apply irrespective of an organization's size. However, large organizations have special requirements that often differ from the needs of smaller organizations. These special requirements are the subject of this white paper.

To meet the anti-spam requirements of large organizations, the anti-spam product should:

• Be deployable as a server solution at the Internet perimeter.
• Integrate with popular enterprise messaging and directory systems.
• Run on the customer's server platform of choice: UNIX or Windows.
• Be easy for IT to deploy and manage.
• Offer flexible configuration and management options for setting rules and handling spam.
• Provide flexibility to match company policies and preferences.
• Allow end users to manage their own junk mail folders and set simple preferences.
• Receive frequent anti-spam updates from a solid, focused vendor.
• Make additional content-security features available as an integrated part of the platform.

Proofpoint Protection Server's unique architecture and broad range of critical functionality -- including massive scalability, user configurability, and multiple security features -- make it a highly effective, enterprise-class anti-spam solution.