Cisco Cisco Email Security Appliance C160 Guía Del Usuario
10-7
User Guide for AsyncOS 9.7 for Cisco Email Security Appliances
Chapter 10 Mail Policies
Configuring Mail Policies
Note
New MIDs (message IDs) are created for each message splinter (for example, MID 1 becomes MID 2
and MID 3). For more information, see the “Logging” chapter. In addition, the
and MID 3). For more information, see the “Logging” chapter. In addition, the
trace
function shows
which policies cause a message to be split.
Policy matching and message splintering in Email Security Manager policies obviously affect how you
manage the message processing available on the appliance.
manage the message processing available on the appliance.
Related Topics
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Managed Exceptions
Because the iterative processing of each splinter message impacts performance, Cisco recommends
configuring your content security rules on a managed exception basis. In other words, evaluate your
organization’s needs and try to configure the feature so that the majority of messages will be handled by
the default mail policy and the minority of messages will be handled by a few additional “exception”
policies. In this manner, message splintering will be minimized and you are less likely to impact system
performance from the processing of each splinter message in the work queue.
configuring your content security rules on a managed exception basis. In other words, evaluate your
organization’s needs and try to configure the feature so that the majority of messages will be handled by
the default mail policy and the minority of messages will be handled by a few additional “exception”
policies. In this manner, message splintering will be minimized and you are less likely to impact system
performance from the processing of each splinter message in the work queue.
Configuring Mail Policies
Mail policies map different user groups to specific security settings, such as Anti-Spam or Anti-Virus.
Related Topics
•
•
•
Configuring the Default Mail Policy for Incoming or Outgoing Messages
The default mail policies apply to messages that are not covered by any other mail policy. If no other
policies are configured, the default policies apply to all messages.
policies are configured, the default policies apply to all messages.
Before You Begin
Understand how you can define the individual security services for the mail policy. See
.
Procedure
Step 1
Depending on your requirements, choose one of the following:
•
Mail Policies > Incoming Mail Policies
•
Mail Policies > Outgoing Mail Policies.
Step 2
Click the link for the security service you want to configure for the Default mail policy.