The preferences are defined by the prefs node. This node is specified by the domainPrefs (plesk_domain.xsd). It is structured as follows:

• The www node is optional. It enables/disables the use of the www prefix with the site name. Data type: Boolean.
• The stat_ttl node is optional. It specifies the number of months during which the subscription traffic statistics is kept. Data type: integer. The maximal value: 999999.
• The outgoing-messages-domain-limit node is optional. It specifies the number of email messages per hour that can be sent from a domain. Data type: integer.

The following sample demonstrates how to set the preferences:

<prefs>
   <www>false</www>
   <stat_ttl>6</stat_ttl>
</prefs>