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Labs



Spam-Blocking Mail Servers

Product And Vendor Anti-Spam Features
Domino
Lotus Development
Cambridge, Mass.
617-577-8500
www.lotus.com 		Blocks specified IP addresses and DNS hostnames; other mail handling through third-party add-ons and LotusScript agent
Exchange
Microsoft
Redmond, Wash.
425-88 2-8080
www.microsoft.com 		Blocks specified IP addresses
I-Mail Server for NT
Ipswitch
Lexington, Mass.
617-676-5700
www.ipswitch.com 		Blocks specified IP addresses, DNS hostnames, and E-mail addresses; accepts E-mail from authorized servers only; stops E-mail relay attempts
Netscape Messaging Server
Netscape Communications
Mountain View, Calif.
415-937-2555
www.netscape.com 		Blocks specified IP addresses, DNS hostnames, and E-mail addresses; stops E-mail relay attempts; accepts mail from authorized servers only; hides internal E-mail addresses
Post.Office
Software.com
Santa Barbara, Calif.
805-882-2470
www.software.com 		Blocks specified IP addresses, DNS hostnames and E-mail addresses; accepts E-mail from authorized servers only; stops E-mail relay attempts