Message store quotas can now be set for specific folders and message types. Message type quotas allow you to specify limits for message type like voicemail and email. Folder quotas set limits on the size of a user's folder in bytes or messages. For example, a quota can be set on the Trash folder. Messaging Server allows you to set default quotas for domains and users as well as customized quotas. See About Message Store Quotas in Sun Java System Messaging Server 6.3 Administration Guide.