Each application in ZWC has a Trash folder. When you open the trash from an application, only deleted items specific to the selected application are displayed. But when you select Empty Trash from any application, items from all applications that have been put into Trash are deleted.
Before you empty the trash folder, you can recover items from the Trash by dragging and dropping them into another folder.
If Recover Deleted Items displays when you right-click the Trash folder, you have the ability to recover email messages you deleted from Trash. Email messages deleted from Trash can be recovered within 30 days of deleting them from the Trash. After 30 days, the items are permanently deleted.
Messages left in the Trash may be automatically purged, in which case you cannot recover them.