Cisco Cisco Email Security Appliance C690 用户指南
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Cisco AsyncOS 8.5 for Email User Guide
Chapter 9 Using Message Filters to Enforce Email Policies
Using the CLI to Manage Message Filters
considered protected. Similarly, PDF file that has no open password will not be considered protected,
even though it may restrict copying or printing with a password. The following example shows protected
attachments sent to a policy quarantine:
even though it may restrict copying or printing with a password. The following example shows protected
attachments sent to a policy quarantine:
Detecting Unprotected Attachments
The
attachment-unprotected
filter tests whether any attachment in the message is not password
protected. This message filter complements the
attachment-protected
filter. You might use this filter
on outgoing mail to detect outgoing mail that is unprotected. The following example shows AsyncOS
detecting unprotected attachments on an outgoing listener and quarantining the messages:
detecting unprotected attachments on an outgoing listener and quarantining the messages:
Using the CLI to Manage Message Filters
You can use the CLI to add, delete, activate and de-activate, import and export, and set logging options
for message filters. The table below shows a summary of the commands and subcommands. The table
below shows a summary of the commands and subcommands.
for message filters. The table below shows a summary of the commands and subcommands. The table
below shows a summary of the commands and subcommands.
quarantine_protected:
if attachment-protected
{
quarantine("Policy");
}
quarantine_unprotected:
if attachment-unprotected
{
quarantine("Policy");
}
Table 9-9
Message Filters Subcommands
Syntax
Description
filters
The main command. This command is interactive; it asks you for more information
(for example,
(for example,
new
,
delete
,
import
).
new
Creates a new filter. If no location is given, it is appended to the current sequence.
Otherwise, the filter will be inserted into the specific place in the sequence. For more
information, see
Otherwise, the filter will be inserted into the specific place in the sequence. For more
information, see
delete
Deletes a filter by name or by sequence number. For more information, see
.
move
Rearranges the existing filters. For more information, see