TDAT:     protected void rejectUserUndefined(MailAddress recipient) throws MessagingException {
        // Update the flags of the received message
        if (!isLeaveUserUndefined())
            setMessageDeleted();

        if (isMarkUserUndefinedSeen())
            setMessageSeen();

        StringBuilder messageBuffer = new StringBuilder("Rejected mail intended for undefined user: ");
        messageBuffer.append(recipient);
        messageBuffer.append('.');
        logStatusInfo(messageBuffer.toString());
    }
 COM: <s> method reject user undefined </s>