Spam-Blocking Firewalls
Product And Vendor	Anti-Spam Features
Firewall-1 Check Point Software Technologies Redwood City, Calif. 415-562-0400 www.checkpoint.com	Blocks specified IP addresses and DNS addresses; filters based on message content; stops E-mail relay attempts; hides internal E-mail addresses
MIM Esweeper Integralis Kirkland, Wash. 206-889-4724 www.us.integralis.com	Blocks specified IP addresses and DNS addresses; filters based on E-mail address and message content; weights words and phrases within E-mail content; accepts mail from authorized servers only

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