The 'deleteonread' property

Boolean Scalar

Valid for: GetMail

The deleteonread property determines whether or not e-mail messages are automatically marked for deletion on the POP3 server once they have been read. If this property is 1, they will be deleted after you have successfully retrieved them using the GetMessage method. If it is 0, they will be left on the server.

The messages are not actually deleted until the POP3 session has been successfully completed and closed using the Close method. If an error occurs, or if the session is aborted because the connection is lost, they will not be deleted.