A7T41FXg

1Exception in thread "main" javax.mail.SendFailedException: Sending failed;
2  nested exception is: 
3    javax.mail.MessagingException: 530 5.7.0 Must issue a STARTTLS command first. f3sm9277120nfh.74
4
5    at javax.mail.Transport.send0(Transport.java:219)
6    at javax.mail.Transport.send(Transport.java:81)
7    at SendMailUsingAuthentication.postMail(SendMailUsingAuthentication.java:81)
8    at SendMailUsingAuthentication.main(SendMailUsingAuthentication.java:44)
9	
10props.put("mail.smtp.starttls.enable","true");
11	
12import java.util.Properties; 
13import javax.mail.Authenticator;
14import javax.mail.Message;
15import javax.mail.MessagingException;
16import javax.mail.PasswordAuthentication;
17import javax.mail.Session;
18import javax.mail.Transport;
19import javax.mail.internet.InternetAddress;
20import javax.mail.internet.MimeMessage;
21	
22Transport transport = session.getTransport("smtps");
23	
24private static void send(
25		final String username,
26		final String password,
27		final String recipients,
28		final String subject,
29		final String body)
30		throws Exception
31{
32	final Session session = Session.getInstance(System.getProperties(), null);
33	final Message msg = new MimeMessage(session);
34	final String senderEmail = username.contains("@") ? username : (username + "@gmail.com");
35	msg.setFrom(new InternetAddress(senderEmail));
36
37	final Address[] recipientAddresses = InternetAddress.parse(recipients);
38	msg.setRecipients(Message.RecipientType.TO, recipientAddresses);
39
40	msg.setSentDate(new Date());
41	msg.setSubject(subject);
42	msg.setText(body);
43
44	final Transport transport = session.getTransport("smtps");
45	transport.connect(GMAIL_SMTP_HOST, GMAIL_SMTP_PORT, username, password);
46	transport.sendMessage(msg, recipientAddresses);
47	transport.close();
48}