java - 无法从GAE从Java邮件APi发送邮件

我正在尝试使用Java邮件Api发送电子邮件，并且我的应用程序已部署在Google App引擎上，

之前我可以通过Java代码发送电子邮件，但最近它已停止，

波纹管是错误

javax.mail.AuthenticationFailedException: 534-5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbuq534-5.7.14 szPbAPjs-PmJgBd5xmPAVgRB8-3WxkoQy7WaGBIGRyltJO9LxKnw0oagw1e-jZeQcgABnK534-5.7.14 mcxSUPyD4ohtBPkovBS45tnMElRdeWM7mzfw2wU3vqqQpDw7_8Z9rphQR_SZpR> Please534-5.7.14 log in via your web browser and then try again.534-5.7.14 Learn more at534 5.7.14 https://support.google.com/mail/answer/78754 186sm22205348pfb.99 - gsmtp

我已经做了一切，在IAM中添加了gmail帐户，因为所有者在gmail中启用了lesssecure选项，但是仍然出现相同的错误

这是代码

public static void sendWelcomeMail(String msg,String email,String subject) {
         System.out.println("Starte - "+email);
       final String username = "serv*******@gmail.com";
       final String password = "********";

       Properties prop = new Properties();
       prop.put("mail.smtp.host", "smtp.gmail.com");
       prop.put("mail.smtp.port", "465");
       prop.put("mail.smtp.auth", "true");
       prop.put("mail.smtp.socketFactory.port", "465");
       prop.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");

       Session session = Session.getInstance(prop,
               new javax.mail.Authenticator() {
                   protected PasswordAuthentication getPasswordAuthentication() {
                       return new PasswordAuthentication(username, password);
                   }
               });

       try {

        Message message = new MimeMessage(session);
           message.setFrom(new InternetAddress(username));
           message.setRecipients(
                   Message.RecipientType.TO,
                   InternetAddress.parse(email+", fo*********@gmail.com")
           );
           message.setSubject(subject);
           Multipart multipart = new MimeMultipart(); //1
        // Create the HTML Part
        BodyPart htmlBodyPart = new MimeBodyPart(); //4
        htmlBodyPart.setContent(msg, "text/html"); //5

        multipart.addBodyPart(htmlBodyPart); // 6
        // Set the Multipart's to be the email's content
        message.setContent(multipart); //7

           Transport.send(message);

           System.out.println("Done");
       }catch(Exception e) {
        e.printStackTrace();
       }
    }

但是我可以从本地计算机发送电子邮件。
让我知道我在做什么错。

TIA

最佳答案

因此，这是我用来解决问题的更改。

我更改了代码的这一部分：

message.setRecipients(
                   Message.RecipientType.TO,
                   InternetAddress.parse(email+", fo*********@gmail.com")
       );

对此：

message.addRecipient(
                   Message.RecipientType.TO,
                   new InternetAddress(email, "")
           );

以及代码的另一部分：

message.setFrom(new InternetAddress(username));

对此：

message.setFrom(new InternetAddress(username, "Admin"));

结果是完整的代码：

public static void sendWelcomeMail(String msg,String email,String subject) {
       final String username = "ser******@gmail.com";
       final String password = "**********";

       Properties prop = new Properties();
       prop.put("mail.smtp.host", "smtp.gmail.com");
       prop.put("mail.smtp.port", "465");
       prop.put("mail.smtp.auth", "true");
       prop.put("mail.smtp.starttls.enable", "true");
       prop.put("mail.smtp.socketFactory.port", "465");
       prop.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");

       Session session = Session.getInstance(prop,
               new javax.mail.Authenticator() {
                   protected PasswordAuthentication getPasswordAuthentication() {
                       return new PasswordAuthentication(username, password);
                   }
               });

       try {

        Message message = new MimeMessage(session);
           message.setFrom(new InternetAddress(username, "Admin"));
           message.addRecipient(
                   Message.RecipientType.TO,
                   new InternetAddress(email, "")
           );
           message.addRecipient(
                   Message.RecipientType.CC,
                   new InternetAddress("fo********@gmail.com", "")
           );
           message.setSubject(subject);
           Multipart multipart = new MimeMultipart(); //1
        // Create the HTML Part
        BodyPart htmlBodyPart = new MimeBodyPart(); //4
        htmlBodyPart.setContent(msg, "text/html"); //5

        multipart.addBodyPart(htmlBodyPart); // 6
        // Set the Multipart's to be the email's content
        message.setContent(multipart); //7

           Transport.send(message);

           System.out.println("Done");
       }catch(Exception e) {
           System.out.println("Exception in sending mail - "+e.getMessage());
        e.printStackTrace();
       }
    }