Add message traffic shaping controls in your system
Steps
- 
                On the page Traffic Shaping, click Add. 
                The Add Traffic Shaping Group page displays.
- In the text field Traffic shaping group name, enter a name.
- From the pull-down menu Order, specify the location in which this group should appear in the traffic shaping group list.
- Select the status of your traffic shaping group: Active or Disabled.
- 
                Configure an email source for the traffic shaping group, if desired. From Source type, designate one of the following source types: 
                - All sources
- Domain groupThis is the default. Select the domain group from the pull-down menu. Modify the selected domain group by clicking Edit. 
- User directorySelect a user directory from the list, or create a new user directory by clicking Add user directory. 
 
- 
                Configure an email destination traffic shaping group, if desired.
                From Destination type, designate one of the following destination types: - All destinations
- Domain groupThis is the default. Select the domain group from the pull-down menu. Modify the selected domain group by clicking Edit. 
- User directorySelect a user directory from the list, or create a new user directory by clicking Add user directory. 
 
- 
                In the field Maximum number of concurrent connections, enter the maximum number of simultaneous message deliveries to an individual routing address.
                The range of values is 5–50; default value is 20.
- 
                In the field Maximum number of messages per connection, enter the maximum number of messages per connection within a defined time period.
                The range of values for number of messages is 1–10000; default value is 10000. The time range is 60 seconds to 30 minutes; default value is 60 seconds.
- 
                In the field Maximum number of recipients, enter the maximum number of message recipients per message delivery.
                The range of values is 5–100; default value is 50.
- 
                Use an SMTP session cache; mark the check box Enable SMTP session cache. This is the default.
                - Enter the maximum number of messages allowed per SMTP session.Range of values is 5–100; default is 10. Enter zero (0) to specify an unlimited number of messages per session. 
- Enter the duration of the SMTP session, in seconds.Range of values is 60–600 seconds; default value is 300 seconds. 
 
- Enter the maximum number of messages allowed per SMTP session.
- 
                Click OK.
                The settings are saved. The new group displays on the page Traffic Shaping.