Cisco Cisco Email Security Appliance C160 Mode D'Emploi

These options are advanced and should only be used in cases where predefined 
settings do not meet your organization’s needs.

You can create a custom DLP policy using the Custom Policy template. You can 
use predefined RSA classifiers for the policy or add a custom classifier. See 

 for instructions on creating a 

classifier. 

Custom policies can return a DLP violation if the content matches a single 
classifier or all classifiers, depending on how the policy is defined. To prevent 
false positives, a DLP policy can include a classifier that the message content 
must not match. By checking the NOT checkbox for a classifier, a message that 
includes matching content for the classifier is not reported as a DLP violation.

To add a custom policy:

Select Mail Policies > DLP Policy Manager.

Click Add DLP Policy.

Click the name of the Custom Policy category.

Click Add for the Custom Policy template.

Enter a name and description for the policy.

Select a classifier for the policy. You can use an existing classifier or select the 
option Create a Classifier.

Click Add.

If you selected Create a Classifier, the Add Content Matching Classifier 
page opens. Otherwise, the predefined classifier is added to the policy.

To add more than one classifier to the policy, repeat steps 

Optionally, you can limit the DLP policy to messages with specific recipients or 
senders. You can separate multiple entries using a line break or a comma. For 
more information, see 

.

Optionally, you can limit the DLP policy to messages with specific attachment 
types. For more information, see