I was code a java email sending program. But when i click the send button the button appear hanging mode & program still running, but mail did not send.
I can't detect the problem. can anybody help me...
The code is below.
Properties props = new Properties();
props.put("mail.transport.protocol", "smtp");
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.starttls.enable", "false");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.port", "465");
Session session = Session.getDefaultInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("myid#gmail.com", "password");
}
}
);
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress("myid#gmail.com"));
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse("senderid#gmail.com"));
message.setSubject("Demo mail");
message.setText("Hello, world!");
Transport.send(message);
JOptionPane.showMessageDialog(this, "Message sent!");
} catch (Exception e) {
JOptionPane.showMessageDialog(this, e);
}
My email account have not activate 2-step verification service.
And it also work in outlook email sending software.. I tested.
But not work on my java program.
I believe the Authenticator class should be extended. Here is an example that works for me:
public class SendEmail {
public SendEmail () {}
public void send (String text){
String host = "smtp.gmail.com";
String username = "user#email.com";
String password = "password";
Properties props = new Properties();
// set any needed mail.smtps.* properties here
Session session = Session.getInstance(props, new GMailAuthenticator("user", "password"));
Message msg = new MimeMessage(session);
Transport t;
try {
msg.setText(text);
msg.setRecipient(Message.RecipientType.TO, new InternetAddress("stackkinggame#gmail.com", "Stack King"));
t = session.getTransport("smtps");
t.connect(host, username, password);
t.sendMessage(msg, msg.getAllRecipients());
t.close();
Gdx.app.log("Email", "Message sent successfully.");
}
catch (Exception e) {
e.printStackTrace();
}
}
class GMailAuthenticator extends Authenticator {
String user;
String pw;
public GMailAuthenticator (String username, String password)
{
super();
this.user = username;
this.pw = password;
}
public PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(user, pw);
}
}
}
First, fix all the common JavaMail mistakes in your program.
Second, since you're using Gmail, make sure you've enabled support for less secure apps.
Finally, you need to provide more details than "it doesn't work". The JavaMail debug output would be helpful.
Related
I am getting the 'com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.1 Client was not authenticated' error always, can somebody tell me what am I doing wrong in my code?
Properties mailprops = new Properties();
mailprops.setProperty("mail.transport.protocol", "smtp");
mailprops.setProperty("mail.smtp.host", "MyHost");
mailprops.setProperty("mail.smtp.user", "UserName");
mailprops.setProperty("mail.smtp.password", "Password");
Session mailSession = Session.getDefaultInstance(mailprops, null);
MimeMessage message = new MimeMessage(mailSession);
message.setSubject(mySubject);
message.addRecipient(To);
message.addFrom(from address);
try{
Transport.send(message);
}catch (SendFailedException sfe) {
}catch (MessagingException mex) {
}
Try below approach,
Provide the Authenticator object to create the session object
public class MailWithPasswordAuthentication {
public static void main(String[] args) throws MessagingException {
new MailWithPasswordAuthentication().run();
}
private void run() throws MessagingException {
Message message = new MimeMessage(getSession());
message.addRecipient(RecipientType.TO, new InternetAddress("to#example.com"));
message.addFrom(new InternetAddress[] { new InternetAddress("from#example.com") });
message.setSubject("the subject");
message.setContent("the body", "text/plain");
Transport.send(message);
}
private Session getSession() {
Authenticator authenticator = new Authenticator();
Properties properties = new Properties();
properties.setProperty("mail.smtp.submitter", authenticator.getPasswordAuthentication().getUserName());
properties.setProperty("mail.smtp.auth", "true");
properties.setProperty("mail.smtp.host", "mail.example.com");
properties.setProperty("mail.smtp.port", "25");
return Session.getInstance(properties, authenticator);
}
private class Authenticator extends javax.mail.Authenticator {
private PasswordAuthentication authentication;
public Authenticator() {
String username = "auth-user";
String password = "auth-password";
authentication = new PasswordAuthentication(username, password);
}
protected PasswordAuthentication getPasswordAuthentication() {
return authentication;
}
}
}
Try something like that:
Transport trans = sess.getTransport("smtp");
try {
String host = sess.getProperty("mail.smtp.host");
String port = sess.getProperty("mail.smtp.port");
String user = sess.getProperty("mail.smtp.user");
String password = sess.getProperty("mail.smtp.password");
int prt = port == null ? -1 : Integer.parseInt(port);
trans.connect(host, prt, user, password);
trans.sendMessage(message,
message.getRecipients(Message.RecipientType.TO));
} finally {
trans.close();
}
UPDATE:
Or rather:
int prt = port == null ? 25 : Integer.parseInt(port);
enable authentication.
enable STARTTLS.
create Authenticator object to pass in Session.getInstance argument.
Sample code:
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
Authenticator auth = new Authenticator() {
//override the getPasswordAuthentication method
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(fromEmail, password);
}
};
Session session = Session.getInstance(props, auth);
You don't need an Authenticator as some answers suggest. There is no mail.smtp.password property. Call the Transport.send method that takes a username and password.
final String username = "<mail_name>";
final String password = "<password>";
Properties props = new Properties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.port", "465");
Session session = Session.getInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress("<mail_from>#gmail.com"));
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse("<mail_to>#gmail.com"));
message.setSubject("Test Subject");
message.setText("Test");
Transport.send(message);
System.out.println("Done");
} catch (MessagingException e) {
throw new RuntimeException(e);
}
I have tried this code for sending mail from pc to mobile but it giving error while compiling . Can any one help me to send mail?
public class sendmail{
public static void mail(String args[]){
final String fromEmail = ""; //requires valid gmail id
final String password = ""; // correct password for gmail id
final String toEmail = "" // can be any email id
System.out.println("SSLEmail Start");
Properties props = new Properties();
props.put("mail.smtp.host", "smtp.gmail.com"); //SMTP Host
props.put("mail.smtp.socketFactory.port", "465"); //SSL Port
props.put("mail.smtp.socketFactory.class",
"javax.net.ssl.SSLSocketFactory"); //SSL Factory Class
props.put("mail.smtp.auth", "true"); //Enabling SMTP Authentication
props.put("mail.smtp.port", "465"); //SMTP Port
Authenticator auth = new Authenticator() {
//override the getPasswordAuthentication method
#Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(fromEmail, password);
}
};
Session session = Session.getDefaultInstance(props, auth);
System.out.println("Session created");
String subject = "";//subject here
String body = "";//mail body here
sendEmail(session, toEmail, subject, body);
}
public static void sendEmail(Session session, String toEmail, String subject, String body) {
try {
MimeMessage msg = new MimeMessage(session);
//set message headers
msg.addHeader("Content-type", "text/HTML; charset=UTF-8");
msg.addHeader("format", "flowed");
msg.addHeader("Content-Transfer-Encoding", "8bit");
msg.setFrom(new InternetAddress("no-reply#anyname.com", "any name"));
msg.setReplyTo(InternetAddress.parse(toEmail, false));
msg.setSubject(subject, "UTF-8");
msg.setText(body, "UTF-8");
msg.setSentDate(new Date());
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(toEmail, false));
System.out.println("Message is ready");
Transport.send(msg);
System.out.println("EMail Sent Successfully!!");
} catch (Exception e) {
e.printStackTrace();
System.out.println("ERROR:" + e.getMessage());
}
}
}
What is mean by PC to Mobile. PC & mobile both are hardware devices to access the mail.Please follow the below link for sending mail in java using java mail API via gmail SMTP.
http://www.mkyong.com/java/javamail-api-sending-email-via-gmail-smtp-example/
If anyone tried/found working java email/smtp/imap client program that connects to cPanel's email a/cs and send emails out then please share it. It has been a tiresome efforts in trying to find that code online but none of them works fine. I did try more than five varieties of code but nothing worked. Below are few samples:
Sample# 1
String host = "mail.domain.net";
String user = "catch-all#domain.net";
String pass = "xxxx";
String to = "admin#domain.net";
String from = "catch-all#domain.net";
String subject = "Dummy subject";
String messageText = "Dummy body";
boolean sessionDebug = false;
Properties props = System.getProperties();
props.put("mail.host", host);
props.put("mail.transport.protocol", "smtp");
props.put("mail.smtp.port", 2525); //25 - default
Session mailSession = Session.getDefaultInstance(props, null);
mailSession.setDebug(sessionDebug);
Message msg = new MimeMessage(mailSession);
try {
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 transport = mailSession.getTransport("smtp");
transport.connect(host, user, pass);
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
} catch (Exception e) {
e.printStackTrace();
}
Error
Sending mail.. Done!javax.mail.MessagingException: Could not connect to SMTP host: mail.dealstock.net, port: 25;
nested exception is:
java.net.ConnectException: Connection refused
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1706)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:525)
at javax.mail.Service.connect(Service.java:291)
at javax.mail.Service.connect(Service.java:172)
at javax.mail.Service.connect(Service.java:192)
at com.mail.EmailsSender2.main(EmailsSender2.java:209)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:432)
at java.net.Socket.connect(Socket.java:529)
at java.net.Socket.connect(Socket.java:478)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:284)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:227)
at com.sun.mai
From the Cpanel account, the designated port is 2525, if secured then 465, but none of the ports work. With post 2525, it does connects, but there is no response and waits for 1-2 minitues and then timeouts. If I change to port 25, then it simply throws above error. With same Cpanel email a/c my another program able to connect and read emails through POP, but failing with sending emails.
Appreciate if you can share your comments/inputs.
I have hostgator, and when creating session, use the following code it works (with no encryption or SSL, not TLS).
btw, port 25 is blocked by my isp (Verizon), and hostgator has it on port 26, not 2525. make sure your hosting company has it running on 2525.
private Session getSession(final EmailConfig emailConfig) {
String port = Integer.toString(emailConfig.getPort());
Properties props = new Properties();
props.put("mail.smtp.host", emailConfig.getHost());
props.put("mail.smtp.port", port);
if (Encryption.SSL == emailConfig.getEncryption()) {
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.socketFactory.port", port);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
}
else if (Encryption.TLS == emailConfig.getEncryption()) {
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
}
return Session.getInstance(props, new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(emailConfig.getUsername(), emailConfig.getDecryptedPassword());
}
});
}
private void sendMessage(Session session, InternetAddress from, InternetAddress[] to, InternetAddress[] cc,
InternetAddress[] bcc, String subject, String text) throws AuthenticationFailedException {
Message message = new MimeMessage(session);
try {
message.setFrom(from);
if (to != null) {
message.setRecipients(Message.RecipientType.TO, to);
}
if (cc != null) {
message.setRecipients(Message.RecipientType.CC, cc);
}
if (bcc != null) {
message.setRecipients(Message.RecipientType.BCC, bcc);
}
message.setSubject(subject);
message.setText(text);
Transport.send(message);
}
catch (AuthenticationFailedException ex) {
log.info("authentication failed", ex);
throw ex;
}
catch (MessagingException e) {
log.info("error sending message", e);
e.printStackTrace();
}
}
This would definitely work for you.
Just call this function to send automated email to client.
In parameter "to" is email address to which you want to send an email.
I usually do it in Maven project. If you are using maven project then import following dependencies.
https://mvnrepository.com/artifact/javax.mail/mail/1.4
final String username = "youremail#gmail.com";
final String password = "yourpassword";
Properties props = new Properties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.port", "587");
Session session = Session.getInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress("youremail#gmail.com"));
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(to));
message.setSubject(subject);
message.setContent(emailBody, "text/html; charset=utf-8");
Transport.send(message);
System.out.println("Done");
} catch (MessagingException e) {
throw new RuntimeException(e);
}
I wanted the mail to be sent automatically at a specific time. I am able to send a mail but I can't make it to be done automatically . Can anyone please tell me how to send automatically? These below are my codes for sending a mail:
public class SendEmail {
String d_email = "sofien.fkih#gmail.com",
d_password = "",
d_host = "smtp.gmail.com",
d_port = "465",
m_to = "sofien.fkih#gmail.com",
m_subject = "Testing",
m_text = "Hey, this is the testing email.";
// Those are the values that have the email information
public void send(String from, String pass, String host, String port, String to, String subject, String text) {
Properties props = new Properties();
// Read properties file.
props.put("mail.smtp.user", from);
props.put("mail.smtp.host", host);
props.put("mail.smtp.port", port);
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.socketFactory.port", port);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
SecurityManager security = System.getSecurityManager();
try {
Authenticator auth = new SMTPAuthenticator();
Session session = Session.getInstance(props, auth);
MimeMessage msg = new MimeMessage(session);
msg.setText(text);
msg.setSubject(subject);
msg.setFrom(new InternetAddress(from));
msg.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
Transport.send(msg);
} catch (Exception mex) {
mex.printStackTrace();
}
}
public class SMTPAuthenticator extends javax.mail.Authenticator {
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(d_email, d_password);
}
}
}
Check out java.util.Timer and if it is not enough for you read about Quartz - the pure java cron compatible scheduler.
Quartz seems better option.This tutorial might help you to set up quartz.
try
public class SendEmail extends TimerTask{
public static void main(String[] args){
Timer t = new Timer();
t.schedule(new SendEmail(), 0, 9000); //send email every 9 seconds
}
#Override
public void run() {
// TODO Auto-generated method stub
//Your email syntax here
}
}
I have this servlet which needs to send mail using Java Mail API, however I am getting no password specified error, although the password work with gmail.
MailServiceImpl.java:
public class MailServiceImpl extends RemoteServiceServlet implements MailService {
private static String HOST = "smtp.gmail.com";
private static int PORT = 465;
private String username = "foo#gmail.com";
private String password = "foo123";
private Properties props = new Properties();
#Override
public void sendMail(String email) {
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "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.getInstance(props);
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress("foo#gmail.com"));
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse("foo#gmail.com"));
message.setSubject("Testing Subject");
message.setText("Subcriber Email:," +
"\n\n " + email);
Transport transport = session.getTransport("smtp");
transport.connect(HOST, PORT, username, password);
Transport.send(message);
transport.close(); // -- needed?
} catch (Exception e) {
e.printStackTrace();
}
}
}
However I am getting this error:
javax.mail.AuthenticationFailedException: failed to connect, no password specified?
at javax.mail.Service.connect(Service.java:329)
at javax.mail.Service.connect(Service.java:176)
at javax.mail.Service.connect(Service.java:125)
at javax.mail.Transport.send0(Transport.java:194)
at javax.mail.Transport.send(Transport.java:124)
at com.mygwtapp.server.MailServiceImpl.sendMail(MailServiceImpl.java:43)
Try using SSL connection. It worked for me.
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", "465");
Session session = Session.getDefaultInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("username","password");
}
});
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress("from#test.com"));
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse("to#test.com"));
message.setSubject("Testing Subject");
message.setText("mail text");
Transport.send(message);
System.out.println("OK");
} catch (MessagingException e) {
throw new RuntimeException(e);
}
}