Hi

What i did ..
In my application , we are trying to send mails.
The user should be able to attach file ...

Problem ...
i have a function called void Smtp::dnsLookupHelper() . Here it is not able to resolve the DNS SERVER NAME in string . say "ourserver.com"
Qt Code: 
  1. socket->connectToHost( s.first().name ,25 );  // s.first().name = "ourserver.com"
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see the code in this void Smtp::dnsLookupHelper()
Qt Code: 
  1. void Smtp::dnsLookupHelper()
  2. {
  3. 	QValueList<QDns::MailServer> s = mxLookup->mailServers();
  4. 	QValueList<QDns::MailServer>::Iterator it = s.begin();
  5.      	while( it != s.end() ) 
  6.  	{
  7.          	qDebug("%DNS-Server:"+QString("%1").arg( (*it).name ));
  8.          	++it;
  9.      	}	
  10.  
  11.  
  12.  
  13.  
  14.  
  15. 	if ( s.isEmpty() && mxLookup->isWorking() )
  16. 		{
  17. 		emit status( tr( "Could not find mail server.  Please check address." ) );
  18. 		QMessageBox::warning( qApp->activeWindow(),
  19. 			tr( "SynsupMail" ),
  20. 			tr( "Could not find mail server for address:\n\n %1" ).arg( rcpt ) );
  21. 		QTimer::singleShot( 0, this, SLOT(deleteMe()) );
  22. 		return;
  23. 		}
  24.  
  25. 	emit status( tr( "Connecting to %1" ).arg( s.first().name ) );
  26. 	socket->connectToHost( s.first().name ,25 );   // Not able to resolve the DNS name.
  27. 	//socket->connectToHost( QString("192.168.45.55"), 25 );  //this will work, as i given the IP address directly
  28. 	t = new QTextStream( socket );
  29.  
  30. }
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if am giving the DNS SERVER NAME like this "192.168.45.55" this will work . Why ..????


please help