Cisco Cisco Email Security Appliance C190 Guia Do Utilizador

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. 

The Cisco Cloud Web Security proxy service has no configurable options in this release. For 
example, there is no threat score threshold to adjust or action to specify based on threat 
score. 

Replace the URL with any text. 

To include the original URL in the text that appears in the message, use the 

$URL

 variable. 

Examples: 

Replace all URLs in the Illegal Downloads category with a note: 

Message from your system administrator: A link to an illegal downloads web site 

has been removed from this message. 

Include the original URL along with a warning: 

WARNING! The following URL may contain malware: $URL

 

This becomes: WARNING: The following URL may contain malware: http://example.com. 

Redirect to a custom proxy or web security service: 

http://custom_proxy/$URL

 

This becomes: http://custom_proxy/http://example.com 

The reputation and category of URLs that are included on the selected URL whitelist or on the global 
URL whitelist are not evaluated. 

If you defang or replace URLs, you can choose to ignore URLs in signed messages. 

Pairing a URL Reputation or URL Category action with a URL Reputation or URL Category condition 
(or rule) is not recommended. If you pair a condition (rule) and action that include different categories, 
then no match occurs. 

To check the category of a particular URL, visit the link in 

.