Sending mail from your Java application using google SMTP

Previous few I was trying to send mail from my JSP page. I had tried every way to make that code work. Later I found that I have to set  Mail Authentication, which lead me to solution.
Here is my SendMail cass, which you can implement in any Java application to send mail.

SendMail.java

/**
 *
 * @author Prashant
 */
import java.security.Security;
import java.util.Properties;

import javax.mail.Message;
import javax.mail.NoSuchProviderException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.PasswordAuthentication;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class SendMail {

	private String to;
	private String subject;
	private String text;

	public SendMail(String to, String subject, String text){
		this.to = to;
		this.subject = subject;
		this.text = text;
	}

	public void send() throws NoSuchProviderException, AddressException{

		try
		{
			Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
			Properties props=new Properties();
			props.setProperty("mail.transport.protocol","smtp");
			props.setProperty("mail.host","smtp.gmail.com");
			props.put("mail.smtp.auth","true");
			props.put("mail.smtp.port","465");
			props.put("mail.debug","true");
			props.put("mail.smtp.socketFactory.port","465");
			props.put("mail.smtp.socketFactory.class","javax.net.ssl.SSLSocketFactory");
			props.put("mail.smtp.socketFactory.fallback","false");
			Session session=Session.getDefaultInstance(props,new GJMailAuthenticator());
			session.setDebug(true);
			Transport transport=session.getTransport();
			InternetAddress addressFrom=new InternetAddress("sender@gmail.com");
			MimeMessage message=new MimeMessage(session);
			message.setSender(addressFrom);
			message.setSubject(subject);
			message.setContent(text,"text/html");
			InternetAddress addressTo=new InternetAddress(to);
			message.setRecipient(Message.RecipientType.TO,addressTo);
			transport.connect();
			Transport.send(message);
			transport.close();
			System.out.println("DONE");

		}
		catch(Exception e)
		{

			e.printStackTrace();
		}
	}
}
class GJMailAuthenticator extends javax.mail.Authenticator{
	protected PasswordAuthentication getPasswordAuthentication()
	{
		return new PasswordAuthentication("sender@gmail.com","sender_password");

	}
}

Mail.java

/**
 *
 * @author Prashant
 */
public class Mail {

	public static void main(String[] args) {

		String to = "yohoprashant@yahoo.com";
		String subject = "Test";
		String message = "A test message";

		SendMail sendMail = new SendMail(to, subject, message);
                try
                {
                    sendMail.send();
                }
                catch (Exception e)
                {
                    //
                }
	}
}

Note:  If you want to use yahoo server instead of google, just you have to change the Port address to 25.

1. import javax.mail.*;
2. import javax.mail.internet.*;
3. import java.util.*;
5. public class Mail
6. {
7. String d_email = “iamdvr@gmail.com”,
8. d_password = “****”,
9. d_host = “smtp.gmail.com”,
10. d_port  = “465”,
11. m_to = “iamdvr@yahoo.com”,
12. m_subject = “Testing”,
13. m_text = “Hey, this is the testing email using smtp.gmail.com.”;
14. public static void main(String[] args)
15. {
16. String[] to={“XXX@yahoo.com”};
17. String[] cc={“XXX@yahoo.com”};
18. String[] bcc={“XXX@yahoo.com”};
19. //This is for google
20. Mail.sendMail(“venkatesh@dfdf.com”,“password”,“smtp.gmail.com”,“465”,“true”,
21. “true”,true,“javax.net.ssl.SSLSocketFactory”,“false”,to,cc,bcc,
22. “hi baba don’t send virus mails..”,“This is my style…of reply..
23. If u send virus mails..”);
24. }
26. public synchronized static boolean sendMail(String userName,String passWord,String host,String port,String starttls,String auth,boolean debug,String socketFactoryClass,String fallback,String[] to,String[] cc,String[] bcc,String subject,String text){
27. Properties props = new Properties();
28. //Properties props=System.getProperties();
29. props.put(“mail.smtp.user”, userName);
30. props.put(“mail.smtp.host”, host);
31. if(!“”.equals(port))
32. props.put(“mail.smtp.port”, port);
33. if(!“”.equals(starttls))
34. props.put(“mail.smtp.starttls.enable”,starttls);
35. props.put(“mail.smtp.auth”, auth);
36. if(debug){
37. props.put(“mail.smtp.debug”, “true”);
38. }else{
39. props.put(“mail.smtp.debug”, “false”);
40. }
41. if(!“”.equals(port))
42. props.put(“mail.smtp.socketFactory.port”, port);
43. if(!“”.equals(socketFactoryClass))
44. props.put(“mail.smtp.socketFactory.class”,socketFactoryClass);
45. if(!“”.equals(fallback))
46. props.put(“mail.smtp.socketFactory.fallback”, fallback);
48. try
49. {
50. Session session = Session.getDefaultInstance(props, null);
51. session.setDebug(debug);
52. MimeMessage msg = new MimeMessage(session);
53. msg.setText(text);
54. msg.setSubject(subject);
55. msg.setFrom(new InternetAddress(“p_sambasivarao@sutyam.com”));
56. for(int i=0;i<to.length;i++){
57. msg.addRecipient(Message.RecipientType.TO, new InternetAddress(to[i]));
58. }
59. for(int i=0;i<cc.length;i++){
60. msg.addRecipient(Message.RecipientType.CC, new InternetAddress(cc[i]));
61. }
62. for(int i=0;i<bcc.length;i++){
63. msg.addRecipient(Message.RecipientType.BCC, new InternetAddress(bcc[i]));
64. }
65. msg.saveChanges();
66. Transport transport = session.getTransport(“smtp”);
67. transport.connect(host, userName, passWord);
68. transport.sendMessage(msg, msg.getAllRecipients());
69. transport.close();
70. return true;
71. }
72. catch (Exception mex)
73. {
74. mex.printStackTrace();
75. return false;
76. }
77. }
79. }