java mail

[ramchander yshetti]

hai
this is my java mail program it is compiling successfuly but runtime exception is coming.
please clear me.


import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;

public class SimpleSendMessage
{
public static void main(String[] args)
{
String host="gmail.com";
String to="[e-mail]";
String from="[e-mail]";

String subject=" THUSHARA PG COLLEGE..";

String messageText=" i am sending a message using the JAVA API \n";

boolean sessionDebug=false;

Properties prop=System.getProperties();
prop.put("mail.host",host);
prop.put("mail.transport.protocol","smtp");

Session session=Session.getDefaultInstance(prop,null);

session.setDebug(sessionDebug);

try
{
Message msg=new MimeMessage(session);
msg.setFrom(new InternetAddress(from));

InternetAddress []address={new InternetAddress(to)};

msg.setRecipients(Message.RecipientType.TO,address);
msg.setSubject(subject);
msg.setSentDate(new Date());
msg.setText(messageText);

Transport.send(msg);
}
catch(MessagingException e)
{
e.printStackTrace();
}

System.out.println("yes...............................!");
}
}
------------------------
javax.mail.SendFailedException: Sending failed;
nested exception is:
javax.mail.MessagingException: Could not connect to SMTP host: gmail.com
, port: 25;
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 SimpleSendMessage.main(SimpleSendMessage.java:40)

---------------
i connected to net but why this problem is coming please clear me
i will be thankfull to you.
bye

[Ulf Dittmer]

I doubt that gmail.com is running a mail server; it's probably smtp.gmail.com or something similar.

You'll also need to use authentication. Check this JavaMail introduction for how that works.

[Scott Selikoff]

smtp.gmail.com does indeed work, although you have to check which port to use as well as providing your full g-mail login info for authentication.

[kaan h.]

Sending mail from a Java application is so easy.
1.first download mail API from SUN's website (mail_api.rar)
2.Include mail.jar and activation.jar to your IDE's libraries
3.Use following code to send email(example configured for gmail)
enjoy...

import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.security.Security;
import java.util.Properties;

public class GoogleMailSender {

private static final String
SMTP_HOST_NAME = "smtp.gmail.com";
private static final String
SMTP_PORT = "465";
private static final String
emailMsgTxt = " test mail sent";
private static final String
emailSubjectTxt = "Javaaaaaaaaaa";
private static final String
// mailin kimden gittiğini g�steren adres
emailFromAddress = "[e-mail]";
private static final String
SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
private static final String[]
// mail g�ndermek istediğimiz adresler
sendTo = {"[e-mail]"};

public void sendSSLMessage(String recipients[], String subject,
String message, String from)
throws MessagingException {
Properties props = new Properties();
props.put("mail.smtp.host", SMTP_HOST_NAME);
props.put("mail.smtp.auth", "true");
props.put("mail.debug", "true");
props.put("mail.smtp.port", SMTP_PORT);
props.put("mail.smtp.socketFactory.port", SMTP_PORT);
props.put("mail.smtp.socketFactory.class", SSL_FACTORY);
props.put("mail.smtp.socketFactory.fallback", "false");

Session session = Session.getDefaultInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication(){
// buraya gmail mail adresinizi ve sifrenizi girmelisiniz.
return new PasswordAuthentication("[e-mail]", "password here");
}
});

Message msg = new MimeMessage(session);
InternetAddress addressFrom = new InternetAddress(from);
msg.setFrom(addressFrom);

InternetAddress[]
addressTo = new InternetAddress[recipients.length];
for (int i = 0; i < recipients.length; i++) {
addressTo[i] = new InternetAddress(recipients[i]);
}
msg.setRecipients(Message.RecipientType.TO, addressTo);

msg.setSubject(subject);
msg.setContent(message, "text/plain");
Transport.send(msg);
}




public static void main(String args[]) throws Exception {
Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
new GoogleMailSender().sendSSLMessage(
sendTo, emailSubjectTxt, emailMsgTxt, emailFromAddress);
System.out.println("Sucessfully Sent mail to All Users");
}//end main





}//end class