About Policy References

Collections of words or phrases (lexical expressions) with associated weightings. See About Lexical Expressions for more information.

Email messages that can be sent as a notification, for example to the original message sender or the system administrator. See About Informs for more information.

Lists of one or more file identification masks for identifying the presence of particular files or file types in a communication. See About Filename Lists for more information.

Lists of one or more hexadecimal signatures that can be identified at the start or end of a media type file. The Gateway provides a number of custom media types and you can also create your own. See About Custom Media Types for more information.

Groupings of one or more users to whom you want to apply a common policy. See About User Name Lists for more information.

Groupings of individual user machines. Machine lists can be used to define one 'endpoint' of a policy route. See About Machine Lists for more information.

Groupings of web pages to which policies can apply. You can use Internet Zones as part of route definitions. Internet Zones define the World Wide Web endpoint of a route. See About Internet Zones for more information.

Groupings of URLs that define the internal web sites of your company. See About Intranet Sites for more information.

Configurable pages which are displayed when a prohibited web page is accessed. See About End User & Block Pages for more information.