Java EE (Java Enterprise Edition) General Discussion

Hi,
please suggest something regarding this:

Properties props = new Properties();
props.put("mail.smtp.host", "smtp.aquilasiti.com");
props.put("mail.smtp.port", "123"); 


javax.mail.SendFailedException: Sending failed;
  nested exception is: 
	javax.mail.MessagingException: Could not connect to SMTP host: smtp.aquilasiti.com, port: 123;
  nested exception is: 
	java.net.ConnectException: Connection timed out: connect
	at javax.mail.Transport.send0(Transport.java:219)
	at javax.mail.Transport.send(Transport.java:81)
	at SendMail.postMail(SendMail.java:45)
	at SendMail.main(SendMail.java:51)

I changed the port 'cause port 25 is closed.