Cisco Cisco Email Security Appliance X1050 Guía Del Usuario
15-3
Cisco AsyncOS 8.5.5 for Email Security User Guide
Chapter 15 URL Filtering
Setting Up URL Filtering
Step 4
(Optional) If you have created a list of URLs to exempt from URL filtering when evaluating messages
for spam and malware, and from all content and message filtering, select that list.
for spam and malware, and from all content and message filtering, select that list.
This setting does not cause the message to bypass anti-spam or Outbreak Filters processing generally.
Step 5
Submit and commit your changes.
If you have met the applicable prerequisites, and you have already configured Outbreak Filters and
Anti-Spam protection, then you do not need to make additional configurations to benefit from enhanced
detection of spam and malicious URLs.
Anti-Spam protection, then you do not need to make additional configurations to benefit from enhanced
detection of spam and malicious URLs.
What To Do Next
•
To use URL categories in content and message filters, for example to enforce acceptable use
policies, see
policies, see
•
To redirect all URLs in suspected spam messages to the Cisco Web Security proxy service, see
.
•
Ensure that you receive alerts about issues related to this feature. See
, the release notes for your AsyncOS release, and
About the Connection to Cisco Web Security Services
URL reputation and category are provided by cloud-based Cisco Web Security Services.
The Email Security appliance connects to the Cisco Web Security Services either directly or through a
web proxy, using the port specified for URL filtering services in
web proxy, using the port specified for URL filtering services in
Communication is over HTTPS with mutual certificate authentication. Certificates are updated
automatically (see
automatically (see
.) For additional information about required certificates,
see the Release Notes available from the location specified in
If an HTTP or HTTPS proxy has been configured on the Security Services > Service Updates page, the
Email Security appliance will use it when communicating with Cisco Web Security Services. For more
information about using a proxy server, see
Email Security appliance will use it when communicating with Cisco Web Security Services. For more
information about using a proxy server, see
In FIPS mode, communications with the Cisco Web Security Services uses FIPS ciphers.
Note
Certificates are not saved with a configuration file.
Related Topics
•
•
URL Filtering in Cluster Configurations
•
You can enable URL filtering at the machine, group or cluster level.
•
If URL filtering is enabled at machine level, URL whitelists can be configured at machine, group or
cluster level.
cluster level.