DeleteMessage Method
Deletes a message from the server-side mailbox.
procedure DeleteMessage(Index: Integer);
Remarks
Call this method to delete a message from the mailbox.
Note that the message may not be deleted immediately. It is typical for POP3 servers to only mark messages for deletion upon receipt of this command, and only delete them after the connection has been gracefully closed.
If needed, messages can be "undeleted" during the same session by calling the Undelete method.