code from hell

                        if (server.equals("ok DMEP")) {
                            out.println("begin");
                            if (br.readLine().equals("ok")) {
                                out.println("subject " + this.message.getSubject());
                                if (br.readLine().equals("ok")) {
                                    out.println("from " + this.message.getFrom());
                                    if (br.readLine().equals("ok")) {
                                        out.println("data " + this.message.getData());
                                        if (br.readLine().equals("ok")) {
                                            String to = "to ";
                                            int helper=0;
                                            for (String s : this.message.getAdresses()) {
                                                if (helper==0) {
                                                    to = to + s;
                                                    helper++;
                                                }
                                                else
                                                    to = to +","+s;
                                            }

                                            out.println("to" + to);

                                            if (br.readLine().equals("ok"))
                                                to=null; //ende
                                        }
                                    }
                                }
                            }
                        }