After you read your mail, you might want to delete it. To delete a message, select it and press the Delete key, click the Trash button, press Ctrl+D, or right-click the message, then click Delete. When you press Delete or click the Trash button, your mail isn't actually deleted, but is marked for deletion. Your e-mail is recoverable until you have expunged your mail. When you expunge a folder, you remove all the mail that you have marked for deletion. To show deleted messages, click View > Hide Deleted Messages. You can also find deleted messages in the your Trash folder. To permanently erase all the deleted messages in a folder, click Folder > Expunge or press Ctrl+E.Both local and IMAP Trash folders are actually search folders that display all messages you have marked for later deletion. For more information about search folders, see Using Search Folders. Because emptying your trash expunges the messages in your Trash folder, emptying Trash is the same as expunging deleted mail from all your folders.However, this is not true for the Trash folder on Exchange servers, which behaves just the same as it does in Outlook. It is a normal folder with actual messages in it.
