IronPort - Configuration Guide - AsyncOS 7.6.1

Chapter 9 Anti-Spam
Additional Steps
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The Security Services > IronPort Intelligent Multi-Scan page is refreshed to display the values you chose
in the previous steps.
Figure 9-8 Cisco IronPort Intelligent Multi-Scan Global Settings
Once you have enabled Cisco IronPort Intelligent Multi-Scan, enable SenderBase Reputation Service
scoring, even if you are not rejecting connections based on SenderBase Reputation scores. For more
information on enabling SBRS, see Implementing SenderBase Reputation Filters, page 7-4.
Configuring Anti-Spam Rule Updating
Cisco IronPort Anti-Spam and Cisco IronPort Intelligent Multi-Scan rules are retrieved (by default) from
Cisco IronPort’s update servers. You can specify a local server for updates, a proxy server to use for
retrieving updates, and whether and how frequently to check for rule updates. To configure updates for
your anti-spam solution, click Edit Update Settings on the Security Services > Service Updates page.
See Service Updates, page 15-10 for more information.
Enabling a Proxy Server for Obtaining Cisco IronPort Anti-Spam Rules Updates
The Cisco IronPort appliance is configured to connect directly to Cisco IronPort’s update servers to
receive anti-spam rules updates. This connection is made by HTTP on port 80 and the content is
encrypted. If you do not want to open this port in your firewall, you can define a proxy server and specific
port from which the appliance can receive updated rules.
If you choose to use a proxy server, you can specify an optional authentication and port.
Cisco IronPort Anti-Spam and Cisco IronPort Intelligent Multi-Scan will automatically use a proxy
server if one has been defined. There is no way to turn off the proxy server for the anti-spam solution
without disabling it for all other service updates (Outbreak Filters, Sophos Anti-Virus, etc.).
Note If you define a proxy server, it will be used for all service updates that are configured to use a proxy
server, automatically.
For more information about defining a proxy server, see Specify an HTTP Proxy Server (Optional),
page 15-14.
Cisco IronPort AsyncOS 7.6 for Email Configuration Guide
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