Cisco Cisco Email Security Appliance C190 Guia Do Utilizador

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Cisco AsyncOS 8.5.6 for Email User Guide
 
Chapter 15      URL Filtering
  Taking Action Based on the Reputation or Category of URLs in Messages
The action that you pair with this condition is taken if any URL in the message matches the reputation 
score or any category specified in the condition. 
If you want to modify URLs in a message, or modify their behavior, configure only a URL Reputation 
or URL Category action. You do not need a separate URL Reputation or URL Category condition or rule 
for this purpose. 
Note
Do not pair a URL Reputation condition with a Bounce action. 
Tip
To check the category of a particular URL, visit the link in 
Related Topics 
 
Modifying URLs in Messages: Using URL Reputation and URL Category Actions 
in Filters 
Use a URL Reputation or URL Category action to modify URLs in a message, or their behavior, based 
on the reputation or category of the URL. 
URL Reputation and URL Category actions do not require a separate condition. Instead, the selected 
action is applied based on the reputation or categories that you select in the URL Reputation or URL 
Category action. 
The action is applied only to URLs that meet the criteria specified in the action. Other URLs in the 
message are not modified. 
If you do not specify a category, the action you choose is applied to all messages. 
URL reputation score ranges for clean, suspect, and malicious URLs are predefined and not editable. 
However, you can specify a custom range instead. The specified endpoints are included in the range you 
specify. For example, if you create a custom range from -8 to -10, then -8 and -10 are included in the 
range. Use "No Score" for URLs for which a reputation score cannot be determined. 
The following URL-related actions are available: 
Defang a URL so that it is unclickable. Message recipients can still see and copy the URL. 
Redirect a URL so that if the message recipient clicks the link, the transaction is routed to a Cisco 
web security proxy in the cloud, which blocks access if the site is malicious. 
Example: You might want to redirect all URLs in the Uncategorized category to the Cisco Cloud 
Web Security proxy service, as malicious sites used in phishing attacks often do not exist long 
enough to be classified. 
See also 
To redirect URLs to a different proxy, see the example in the following bullet.