Sending a mail in Java

Got this Error..???

"javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException:"

Are you searching for the code to send a Email from java program? OR Are you stuck while sending a mail due to this exception.!!! Dont worry I will help you getting it solved.

Step 1: Disable your antivirus or firewalls until we finish this.

Here is how to disable the Avast Shields.. Similarly search for yours.

Step 2: Importing SSL Certificate into your Computer.

• Open your Gmail and click on the lock symbol.

• Now Go to connection and open certificate information.

• Now Go to Details and Then Copy to file.
  

• Then just do next next next then browse for file location, give a name and save.

ok... Now we are done saving the certificate, now we need to install it. copy that certificate into C:\Program Files\Java\jdk1.8.0_25\jre\lib\security this location. if you have installed windows in c drive. After pasting, double click that and run it.

now click on Install Certificate and then just next next and finish. then you are done.

Step 3: Getting jar file from apache.

Click here to download the zip file for the jar files which are going to use in our program.

Just extract and add the commons-email-1.4.jar file to your project folder in netbeans.

Step 4: Writing the program.

2. import java.util.logging.Level;
3. import java.util.logging.Logger;
4. import org.apache.commons.mail.*;
5. /**
6.  *
7.  * @author Bisudw
8.  */
9. public class Sender {
10.     public static void main(String [] args){
11.         try {
12.             Email email = new SimpleEmail();
13.             email.setHostName("smtp.gmail.com");
14.             email.setSmtpPort(465);
15.             email.setSSLCheckServerIdentity(true);
16.             email.setStartTLSRequired(true);
17.             email.setAuthenticator(new DefaultAuthenticator("yourmail@gmail.com", "password"));
18.             email.setSSLOnConnect(true);
19.             email.setFrom("yourmail@gmail.com");
20.             email.setSubject("Test Mail");
21.             email.setMsg("This is a test mail.");
22.             email.addTo("receiver's mail@gmail.com");
23.             email.send();
24.             System.out.println("Message Sent Successfully..!!");
25.         } catch (EmailException ex) {
26.             //System.out.println("Message Sending Filed...!!!");
27.             Logger.getLogger(Sender.class.getName()).log(Level.SEVERE, null, ex);
28.         }
29.     }
30. }

just run it... If you get any further errors.. Please comment below.

Thank You.

Code for Java Learners to Read a email at the Gmail.

I wanted my Raspberry PI to read my Emails.  So i needed a Java program to to read the mails. Most of the Java programs  I found on net were not working due to SSL certificate errors. Finally here i came up with a code that's working amazingly..!! Atleast for now..!!

2. import com.sun.mail.util.MailSSLSocketFactory;
3. import java.security.GeneralSecurityException;
4. import java.util.Properties;
5. import java.util.logging.Level;
6. import java.util.logging.Logger;
7. 
   
8. import javax.mail.Folder;
9. import javax.mail.Message;
10. import javax.mail.Session;
11. import javax.mail.Store;
12. import javax.mail.internet.InternetAddress;
13. 
    
14. public class Downloader {
15. 
    
16.  public static void main(String[] args) {
17.   Downloader gmail = new Downloader();
18.      try {
19.          gmail.read();
20.      } catch (GeneralSecurityException ex) {
21.          Logger.getLogger(Downloader.class.getName()).log(Level.SEVERE, null, ex);
22.      }
23.  }
24. 
    
25.  public void read() throws GeneralSecurityException {
26.      MailSSLSocketFactory socketFactory= new MailSSLSocketFactory();
27. socketFactory.setTrustAllHosts(true);
28. 
    
29.   Properties propsSSL = new Properties();
30.   propsSSL.put("mail.smtp.host", "smtp.gmail.com");
31.   propsSSL.put("mail.smtp.socketFactory.port", "465");
32.   propsSSL.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
33.   propsSSL.put("mail.smtp.port", "465");
34.   propsSSL.put("mail.imaps.ssl.socketFactory", socketFactory);
35.   propsSSL.put("mail.smtps.auth", "true");
36.      propsSSL.put("mail.smtps.ssl.checkserveridentity", "false");
37.      propsSSL.put("mail.smtps.ssl.trust", "*");
38.   try {
39.    
40.    Session session = Session.getDefaultInstance(propsSSL, null);
41. 
    
42.    Store store = session.getStore("imaps");
43.    store.connect("smtp.gmail.com", "yourmail@gmail.com","password");
44. 
    
45.    Folder inbox = store.getFolder("inbox");
46.    inbox.open(Folder.READ_ONLY);
47.    int messageCount = inbox.getMessageCount();
48. 
    
49.    System.out.println("Total Messages:- " + messageCount);
50. 
    
51.    Message[] messages = inbox.getMessages();
52.    System.out.println("------------------------------");
53.    for (int i = 0; i < messageCount; i++) {
54.       System.out.println("Mail Subject:- " + messages[i].getSubject());   
55.       System.out.println("Time: "+messages[i].getSentDate());
56.       System.out.println("From: " +InternetAddress.toString(messages[i].getFrom())+"\n"); 
57.    }
58.    inbox.close(true);
59.    store.close();
60. 
    
61.   } catch (Exception e) {
62.    e.printStackTrace();
63.   }
64.  }
65. 
    
66. }

Wait, not over yet. You need to allow the google to allow you to access your mails from a less secure device. ie your program..!! Click Here to allow access.