You can use dictionaries of prohibited words and apply them to content filtering policy conditions.
Table: Work with dictionaries describes all the ways that you can work with content filtering dictionaries. You can perform any task as needed in any order.
Table: Work with dictionaries
Learn how Symantec Messaging Gateway uses dictionaries in content filtering policy rules.
A dictionary is a list of the words, phrases, file names, and the file name extensions that pertain to a specific topic. When a dictionary is part of a content filtering policy condition, Symantec Messaging Gateway searches your email messages for the contents of the dictionary.
Symantec Messaging Gateway can check any file attachments that are not plain text files against dictionaries. Scanning non-plain text files maximizes the effect of content filtering, but it can affect the system load and slow performance.
Import or export words or phrases into dictionaries.
This feature is helpful when you set up a new Control Center and Scanner deployment. Assume that your existing Control Center and Scanner deployment contain some dictionary words and phrases that you want to use in the new deployment. You can export the words and phrases that you want to use in the new deployment. Then you can import those words and phrases into the new deployment from the Control Center computer.
Enable or disable words or phrases in dictionaries.
Predefined words and phrases are words or the phrases that Symantec Messaging Gateway provides. You cannot delete predefined dictionary words or phrases. However, you can disable the predefined words or phrases that you do not want to use in content filtering policies.
Symantec Messaging Gateway provides the premium dictionaries and custom dictionaries that you can use in your content filtering policies. However, you can create your own user-defined dictionary to suit your specific needs.
Delete your user-defined words or phrases from dictionaries.
User-defined words or phrases are the words or phrases that you add to any type of dictionary (premium, custom, and user-defined). You can delete any of the user-defined words or phrases when they are no longer needed.
You may have an instance in which you want to enable or disable, modify, or delete a word or phrase in multiple dictionaries. Symantec Messaging Gateway lets you search for the words and phrases that are used in all types of dictionaries (premium, custom, and user-defined).