Using Connection Classification ensures that the most abusive senders cannot degrade the connection ability of your best senders. Connection Classification automatically classifies every incoming IP address into one of 10 classes. Symantec Messaging Gateway automatically gathers local reputation data to inform the classification. Senders in the best class, because they rarely if ever send spam, benefit from the best connection parameters. Senders in the worst class are subject to the worst connection parameters. New IP addresses are initially placed into the default class.
Upon initial installation, Connection Classification is in learning mode for the first 50,000 messages. During learning mode no messages are deferred based on their connection class.
Connection Classification is designed to work without any configuration. However, you can configure Connection Classification to customize the parameters for your message flow. Use the procedures in this section to enable, disable, or configure Connection Classification.
To configure Connection Classification
In the Control Center, click Reputation > Policies > Connection Classification.
On the Connection Classification page, check Enable Connection Classification.
To disable Connection Classification, uncheck the box.
To configure Connection Classification parameters, click Edit.
The fields in the table become editable, and the Edit button changes to a Load Defaults button.
To change the maximum connections for each class, type new values in the 10 fields on the Maximum connections row.
Each value is the percent of total available connections that are allocated to that class. The total of all 10 values must equal 100%. In each field, you can enter a value between 0.1 and 99.1, inclusive. As you edit the fields, the current total of the amounts you entered appears in red below the Maximum connections label on the left.
To change the connections that are allowed on a per-IP address basis, type new values in the Maximum Connections per IP fields.
To vary the number of messages that are allowed on a per-connection basis, type new values in the Messages per Connection fields.
To vary the time, in seconds, before a sender IP is allowed to reconnect, type new values in the Reconnect Timeout fields.
To vary the proportion of connections that are deferred for each class, type new values in the Deferred Messages fields.
Each value on this row represents the percentage of the total messages for sender IP addresses in that class that must be deferred. You can type any integer between 0 and 100, inclusive. The values do not need to add up to 100%.
To abandon your changes and return to the default values, click Load Defaults.
To commit your changes, click Save.
Imported Document ID: HOWTO53532
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