e36b28f7_Engineering_Resource_Kit___2_1__Description
[Property] Importance [Description] 
This property specifies the level of importance of the email messages that the BlackBerry Infrastructure and Smartphone Simulator generates for this payload. The possible levels of importance are Normal, High, or Low. The default is Normal.
Change the properties of the email simulation - Administration Guide - BlackBerry Performance Engineering Resource Kit - 2.1