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IronPort - Configuration Guide - AsyncOS 7.6.1

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Chapter 14 Text Resources<br />

OL-25136-01<br />

Figure 14-2 The Dictionaries Page<br />

Step 2 Type a name for the dictionary.<br />

Step 3 Specify whether to match whole words only by marking the checkbox next to Match Whole Words Only.<br />

See Matching Whole Words Only, page 14-6 for more information.<br />

Step 4 Specify whether to perform case-sensitive searches. See Matching Case-Sensitive Words, page 14-6 for<br />

more information.<br />

Note AysncOS preserves the Match Whole Words and Case Sensitive settings when they are saved in<br />

the configuration file. These settings are not preserved when importing and exporting<br />

dictionaries.<br />

Step 5 Optionally, add a smart-identifier to the dictionary. Smart identifiers are algorithms that search for<br />

patterns in data that correspond to common numeric patterns, such as social security numbers and ABA<br />

routing numbers. For more information about smart identifiers, see the “Using Message Filters to<br />

Enforce Email Policies” chapter in Cisco <strong>IronPort</strong> <strong>AsyncOS</strong> for Email Advanced <strong>Configuration</strong> <strong>Guide</strong>.<br />

Step 6 Enter new dictionary entries into the list of terms. For more information about the kinds of entries that<br />

are supported, see Dictionary Content, page 14-2.<br />

Step 7 Specify a weight for the term. You can “weight” a dictionary term so that it is more likely than other<br />

terms to trigger a filter action. For more information about how this weight is used to determine filter<br />

actions, see “Threshold Scoring for Content Dictionaries” in the “Using Message Filters to Enforce<br />

Email Policies” chapter of the Cisco <strong>IronPort</strong> <strong>AsyncOS</strong> for Email Advanced <strong>Configuration</strong> <strong>Guide</strong>.<br />

Step 8 Click Add.<br />

Step 9 Submit and commit your changes.<br />

The Dictionaries page now lists the new dictionary, along with the terms included and the setting<br />

configured for the dictionary.<br />

Note Content dictionary entries with the regular expression: “.*” at the beginning or end will cause the system<br />

to lock if a match for the “word” MIME part is found. Cisco Systems recommends you do not use “.*”<br />

at the beginning or end of a content dictionary entry.<br />

Cisco <strong>IronPort</strong> <strong>AsyncOS</strong> 7.6 for Email <strong>Configuration</strong> <strong>Guide</strong><br />

14-5

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