我遇到了错误

javax.mail.AuthenticationFailedException：535 5.7.3

尝试发送电子邮件时的身份验证。我尝试使用两个不同的电子邮件帐户。一个使用Office365服务器详细信息，另一个使用Gmail服务器详细信息。

在两种情况下，我都会遇到相同的错误。我的代码如下。在我的代码之外，电子邮件地址可以成功发送和接收电子邮件，而不会出现问题。这是我的电子邮件课程，因为它不起作用。我程序的所有其他方面都在工作。非常感谢您提供的帮助。

public class SPUREMAIL{

//CONSTANTS - Things that will never change

private static final String HOST = "smtp.office365.com";

private static final String PORT = "587";

private static final String SENDER = "EMAIL";

private static final String PASSWORD = "PASSWORD";

private static final String SUBJECT = "Spur Design has shared a file with you";

private static final String MESSAGE = "This email message was sent from an unmonitored address. Please contact your Spur Design representative for any questions or concerns";

//this item will change, its the direct link to the file

private String URLToFile;

private String recipient;

public SPUREMAIL(String URLToFile, String recipient){

this.URLToFile = URLToFile;

this.recipient = recipient;

}

//Properties for email

private Properties getProperties(){

Properties properties = new Properties();

properties.put("mail.smtp.auth", "true");

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

properties.put("mail.smtp.host", HOST);

properties.put("mail.smtp.port", PORT);

properties.put("mail.smtp.user", SENDER);

properties.put("mail.smtp.password", PASSWORD);

return properties;

}

//Creating an email session so I can authenticate to server

Session session = Session.getInstance(getProperties(), new javax.mail.Authenticator(){

protected PasswordAuthentication getPasswordAuthentication(){

return new PasswordAuthentication(SENDER, PASSWORD);

}

});

public void sendMail(){//This will actually attempt to send the email successfully

try{

Message message = new MimeMessage(session);

message.setFrom(new InternetAddress(SENDER));

message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipient));

message.setSubject(SUBJECT);

message.setText(MESSAGE);

Transport.getTransport("smtp");

Transport.connect(HOST, SENDER, PASSWORD, pass);

Transport.sendMessage(MESSAGE, message.getAllRecipients());

}

catch(MessagingException e){

System.out.println("send failed, exception: " + e);

}

System.out.println("Sent!!!!");

}

}