User manual

Content filtering can be limited to specific senders or recipients. You can specify, for
example, that only external mail is scanned for pornography, racism, etc., while
own-domain mail to external recipients can be checked for internal or confidential
information. Messages are scanned and compared against the specified dictionaries.
When a dictionary is enabled for a particular job, the words or sentences you have
entered in that list are considered restricted as of a specific threshold value. The job also
defines the character conversion. When the specified threshold is reached, the job starts
the actions that you have previously defined under the Actions tab.
The working principle of a content filtering job:
The job checks an e-mail and finds restricted content. It triggers an alarm and initiates a
series of actions that you have specified for the job under Actions. Let’s assume that you
have specified the following
1.
The message is to be moved into the Quarantine folder you have created and will
not be delivered to the recipient.
2.
Notifications with the relevant information from the Wall job are sent to the
Administrator, the sender and the recipient.
The actions available are the same as for address filtering.
5.3.1 Setting up Dictionaries
1. Click Dictionaries.
2. To open a dictionary, double-click it in the right pane.
3. Under the General tab, enter a name for the dictionary.
4. Give the dictionary a weighting from 1 to 200.
The dictionary weighting applies to each word or phrase and determines the
relationship to other dictionaries and to what extent the dictionary is taken into
account.
To select servers and specify job details proceed as described under Selecting
Servers and Entering Job Details .
For further information on weighting, refer to Checking and Denying Text Contents –
Example .
5. Click the input field for the words and add words and phrases that you want to
forbid.
Each word and/or phrase must stand on its own line, separated by a line break
(Enter key).
The following wildcards can be used in dictionaries:
•
Asterisk (*)
The asterisk represents none or more characters within a word or phrase.
Examples:
*check* will find “check” “checkpoint”, “intercheck” and “intercheckpoint”.
check* will find “check” and “checkpoint”, but not “intercheck” nor
“intercheckpoint”.
Avira AntiVir Exchange 7
121