anchor.diff:    }
   
     void _actionHELO(String message) {
  -    if (message.startsWith('2') == false) throw('Invalid response for EHLO/HELO: $message');
  +    if (message.startsWith('2') == false)
  +      throw ('Invalid response for EHLO/HELO: $message');
   
       supportedAuthentications.add('LOGIN');
   
  
positive.code:   bool _ignoreData = false;
  
    Socket _connection;
  
    bool _connectionOpen = false;
  
    /**
     * A list of supported authentication protocols.
  
negative.code:   }
  
    void _actionRecipient(String message) {
      if (message.startsWith('2') == false) throw ('Recipient failure: $message');
  
      _currentAction = _actionData;
      sendCommand('DATA');
  