Email Client in java

2
votes

try { Properties props = new Properties(); props.put("mail.smtp.starttls.enable", "true"); props.setProperty("mail.transport.protocol", "smtp"); props.setProperty("mail.smtp.host", "smtp.gmail.com"); props.put("mail.smtp.auth", "true"); props.put("mail.smtp.port", "465"); props.put("mail.smtp.socketFactory.port", "587"); props.put("mail.smtp.socketFactory.fallback", "false"); props.setProperty("mail.user", "username"); props.setProperty("mail.password", "password");

Session session = Session.getDefaultInstance(props, new javax.mail.Authenticator() 
  {
   protected PasswordAuthentication getPasswordAuthentication()
   { return new PasswordAuthentication("username","password"); }
  }); 
 session.setDebug(true);

 MimeMessage msg = new MimeMessage(session);

 InternetAddress addressFrom = new InternetAddress(from);
 msg.setFrom(addressFrom);

 msg.addRecipient(Message.RecipientType.TO,new InternetAddress(" Recipient mail id "));

 msg.setSubject(subject);
 Transport transport = session.getTransport();
 transport.connect();
 transport.sendMessage(msg,msg.getRecipients(Message.RecipientType.TO));
 transport.close();

} catch (Exception e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
}

I am using the above code to send email to a gmail account. I have set the smtp host value (smtp.gmail.com)and port (465) in the properties. But the email is not sent and my app got stuck for long time. After that i am getting an error like given below

"javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1"

Can anyone tell what is the reason and how to resolve this issue?

1
javaemailclient

1 Answers

1
votes

Setting 

props.put("mail.smtp.starttls.enable", "true");

enables tls which is on port 587 not 465 

props.put("mail.smtp.port", "587");

See Google Doc

And check whether you really need these lines

props.put("mail.smtp.socketFactory.port", "587");
props.put("mail.smtp.socketFactory.fallback", "false");