This configuration can be further managed by domain administrators on a per user basis. Note: User throttling rules can be configured on the User Defaults template in the Manage > Domains section. The Throttled Users tab displays a list of any user who has violated any throttling rules created on the server. This limit can be set by the amount of outgoing bandwidth used or the number of outgoing emails sent. Bandwidth and email throttling allow system administrators to limit the quantity of data that a SmarterMail mail server transmits within a specified period of time.