Blocking Web Email?

[wnaf]

Does anyone know how to or any product I can install in a Windows 9x
environment that will stop users from being able to connect to web based
email servers.  We have some labs that need internet access but we want to
block email at those machines.
Thank You,

Ward Naf
Network Manager
Whatcom Community College
[EMAIL PROTECTED]
(360) 676-2170 x3337

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