Unable to send an email from java

[Rakesh Keerthi]

Hi,
I am writing a program to send an email from java but i'm unable to send it i'm getting an error. the code and details are as below.

package mail_j;
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
 
public class PlainTextEmailSender {
	public static void main(String[] args) {
		Properties props = new Properties();
		props.put("mail.smtp.host", "smtp.gmail.com");
		props.put("mail.smtp.socketFactory.port", "465");
		props.put("mail.smtp.socketFactory.class",
				"javax.net.ssl.SSLSocketFactory");
		props.put("mail.smtp.auth", "true");
		props.put("mail.smtp.port", "587");
 
		Session session = Session.getDefaultInstance(props,
			new javax.mail.Authenticator() {
				protected PasswordAuthentication getPasswordAuthentication() {
					return new PasswordAuthentication("myemailaddress","mypassword");//i enter the details correctly while sending int he fields of myemail and my password
				}
			});
 
		try {
 
			Message message = new MimeMessage(session);
			message.setFrom(new InternetAddress("myemailaddress"));
			message.setRecipients(Message.RecipientType.TO,
					InternetAddress.parse("[e-mail]"));
			message.setSubject("Testing Subject");
			message.setText("Dear Mail Crawler," +
					"\n\n No spam to my email, please!");
 
			Transport.send(message);
 
			System.out.println("Done");
 
		} catch (MessagingException e) {
			throw new RuntimeException(e);
		}
	}
}

while executing this i get the below error.

Exception in thread "main" java.lang.RuntimeException: javax.mail.SendFailedException: Sending failed;
nested exception is:
javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 587;
nested exception is:
java.net.ConnectException: Connection timed out: connect
at mail_j.PlainTextEmailSender.main(PlainTextEmailSender.java:39)
Caused by: javax.mail.SendFailedException: Sending failed;
nested exception is:
javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 587;
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 mail_j.PlainTextEmailSender.main(PlainTextEmailSender.java:34)
Java Result: 1
BUILD SUCCESSFUL (total time: 42 seconds)

i'm getting the same error even if i use port number 587 and 25
Thanks

[Paul Clapham]

The error message says that the code can't connect to that remote computer. Usually that is because there is no physical connection between the two computers, or else because there is a firewall or proxy or some other component which blocks the connection.

So check your network connectivity.

[Rakesh Keerthi]

Thanks for your reply Paul.
yes my office uses a proxy for internet conectivity. how do i solve this issue over there. i know what the proxy ip address is.

Thanks

[Paul Clapham]

You are doing this for work? Then your network manager should be able to help you get connected, assuming it's a work project. Although I'm a bit surprised your office doesn't have its own e-mail server which you could use.

[Rakesh Keerthi]

Hi Paul,

my office uses MS exchange server.

Thanks

[Ulf Dittmer]

So he can give you all the information you need.

[Nam Ha Minh]

Hi Rakesh Keerthi,

If you are using Gmail SMTP server, make sure you enable SMTP for your Gmail account settings.