Cisco Cisco ASA 5580 Adaptive Security Appliance 기술 매뉴얼

Introduction
 Prerequisites
      Requirements
      Components Used
      Conventions
 Background Information
 Configure
 Verify
 Troubleshoot
      Unable to receive emails from some domains
 Related Information

This document provides a sample configuration on how to configure the email reputation on the Cisco
Content Security and Control (CSC) Security Services Module (SSM).

You need to have a Security Plus license to use this feature.

The information in this document is based on the Cisco Content Security and Control SSM with Software
release version 6.3.

The information in this document was created from the devices in a specific lab environment. All of the
devices used in this document started with a cleared (default) configuration. If your network is live, make sure
that you understand the potential impact of any command.

Refer to the Cisco Technical Tips Conventions for more information on document conventions.

Email Reputation is a technology that reduces the spam mails. By enabling this feature, CSC SSM verifies if
the originator of the mail is a black−listed address or not. It maintains a list of databases that contains all the
IP addresses that source the spam messages. If a mail is found to have an originator from this list, that mail is
considered spam and is dropped.

The service levels offered by this Email Reputation Technology (ERS) are basically two types. These services
are based mainly on the level of authenticity of the source IP addresses.