Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

Encrypting messages. The appliance only encrypts the message body. It does not encrypt the 
message headers.

Altering the subject header of messages containing a DLP violation.

Adding disclaimer text to messages.

Sending messages to an alternate destination mailhost.

Sending copies (bcc) of messages to other recipients. (For example, you could copy messages with 
critical DLP violations to a compliance officer’s mailbox for examination.)

Sending a DLP violation notification message to the sender or other contacts, such as a manager or 
DLP compliance officer. See 

. 

These actions are not mutually exclusive: you can combine some of them within different DLP policies 
for various processing needs for different user groups. You can also configure different treatments based 
on the different severity levels in the same policy. For example, you may want to quarantine messages 
with critical DLP violations and send a notification to a compliance officer, but you may want to deliver 
messages with low severity levels.

Create at least one dedicated quarantine to hold messages (or copies of messages) that violate DLP 
policies. 

This can be a local quarantine on an Email Security appliance or a centralized quarantine on a 
Security Management appliance. 

For deployments with Enterprise Manager: 

Set a timeout large enough for Enterprise Manager to complete its tasks. 

Consider automatic actions carefully; although quarantined messages must be managed in 
Enterprise Manager, the Email Security appliance still releases or deletes quarantined messages 
when the quarantine exceeds the allotted space. 

For information, see 

 

If you want to encrypt messages before delivery, make sure you have set up an encryption profile. 
See 

To include disclaimer text when delivering messages with DLP violations or suspected violations, 
specify disclaimer text in Mail Policies > Text Resources. For information, see 

To send a notification to the sender of a DLP violation or to another person such as a compliance 
officer, first create the DLP notification template. See