public StartOfAuthorityData(RecordType recordType)
 {
     _sourceNameServer = new DomainNameData(recordType);
     _ownerMailbox = new DomainNameData(recordType);
     _serial = 0;
     _refresh = 0;
     _retry = 0;
     _expire = 0;
     _minTtl = 0;
     _recordType = recordType;
 }
 public MailExchangeData(RecordType recordType)
 {
     _preference = 0;
     _mailExchange = new DomainNameData(recordType);
     _recordType = recordType;
 }
 public MailInformationData(RecordType recordType)
 {
     _responsibleMailbox = new DomainNameData(recordType);
     _errorMailBox = new DomainNameData(recordType);
     _recordType = recordType;
 }