code: @Override
      public String incomingClearText(String st) {
          StringBuffer sb = new StringBuffer(st);
  
          int idx = sb.indexOf("'IIDIA:");
          if (idx != -1) {
              int idx2 = sb.indexOf("'", idx + 1);
              log.warn("removing invalid segment '" + sb.substring(idx + 1, idx2 + 1) + "'");
              sb.delete(idx + 1, idx2 + 1);
          }
  
          return sb.toString();
      }
docs: TODO: msgsize muss angepasst werden