在 java 中发送电子邮件时抛出 javax.mail.AuthenticationFailedException
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javax.mail.AuthenticationFailedException is thrown while sending email in java
提问by Mahira Khan
I am beginner in java and I want to send an email in java, for that I am using this code in Java. But my code is throwing an exception, and I need a heads-up why…
我是 Java 初学者，我想用 Java 发送一封电子邮件，因为我在 Java 中使用此代码。但是我的代码抛出了一个异常，我需要知道为什么......
This is stack trace of exception:
这是异常的堆栈跟踪：
javax.mail.AuthenticationFailedException: 534-5.7.14 <https://accounts.google.com/ContinueSignIn?sarp=1&scc=1&plt=AKgnsbsNX
534-5.7.14 No6jJbDc4l7fZ_WLdBD0sNHIIp_nLvplRMm0bYFBnZBF_XOyVvNSdd1FenDZJPwBTFQyRH
534-5.7.14 lriPK3myMm-dXkW3zK0-6XpO7BzI8hfRcByG1k7YiVzXlddTvs7QhjtgCWNcrzMBuPhoof
534-5.7.14 GjME2TgYzXJVHz5MV98nRnr_kq-kP7RmgOtX3IQHLwM5E8QGBC9-2THVQr_Ch_U0-1nZsc
534-5.7.14 yoPuNEw> Please log in via your web browser and then try again.
534-5.7.14 Learn more at
534 5.7.14 https://support.google.com/mail/bin/answer.py?answer=78754 wr6sm26888533wjc.24 - gsmtp
at com.sun.mail.smtp.SMTPTransport$Authenticator.authenticate(SMTPTransport.java:892)
at com.sun.mail.smtp.SMTPTransport.authenticate(SMTPTransport.java:814)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:728)
at javax.mail.Service.connect(Service.java:364)
at javax.mail.Service.connect(Service.java:245)
at SendEmail.sendFromGMail(SendEmail.java:50)
at SendEmail.main(SendEmail.java:18)
sent
This is my code
这是我的代码
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
public class SendEmail {
private static String USER_NAME = "me";
private static String PASSWORD = "xyz";
private static String RECIPIENT = "[email protected]";
public static void main(String[] args) {
String from = USER_NAME;
String pass = PASSWORD;
String[] to = { RECIPIENT };
String subject = "Java send mail example";
String body = "Welcome to JavaMail!";
sendFromGMail(from, pass, to, subject, body);
System.out.println("sent");
}
private static void sendFromGMail(String from, String pass, String[] to, String subject, String body) {
Properties props = System.getProperties();
String host = "smtp.gmail.com";
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host", host);
props.put("mail.smtp.user", from);
props.put("mail.smtp.password", pass);
props.put("mail.smtp.port", "587");
props.put("mail.smtp.auth", "true");
Session session = Session.getDefaultInstance(props);
MimeMessage message = new MimeMessage(session);
try {
message.setFrom(new InternetAddress(from));
InternetAddress[] toAddress = new InternetAddress[to.length];
for( int i = 0; i < to.length; i++ ) {
toAddress[i] = new InternetAddress(to[i]);
}
for( int i = 0; i < toAddress.length; i++) {
message.addRecipient(Message.RecipientType.TO, toAddress[i]);
}
message.setSubject(subject);
message.setText(body);
Transport transport = session.getTransport("smtp");
transport.connect(host, from, pass);
transport.sendMessage(message, message.getAllRecipients());
transport.close();
}
catch (AddressException ae) {
ae.printStackTrace();
}
catch (MessagingException me) {
me.printStackTrace();
}
}
}
回答by Sazib
I had the same problem! Google prevents access for less secure apps.
我有同样的问题！Google 会阻止访问安全性较低的应用程序。
This is how I solved it:
我是这样解决的：
- Log in from your browser to that email account.
- Go to https://www.google.com/settings/security/lesssecureapps
- You will see Turn offor Turn on. Click on Turn on, then try your code again. It should work now.
- 从您的浏览器登录到该电子邮件帐户。
- 转到https://www.google.com/settings/security/lesssecureapps
- 您将看到关闭或打开。点击打开，然后再次尝试您的代码。它现在应该可以工作了。
回答by biniam
- Make sure Less secure apps is TURNED ONhttps://www.google.com/settings/security/lesssecureapps
- Allow each app to send email
Go to https://accounts.google.com/b/0/DisplayUnlockCaptchaand click on Continue.
- This time: you can use your app to send email and all operations are allowed.
- 确保安全性较低的应用程序已打开https://www.google.com/settings/security/lesssecureapps
- 允许每个应用程序发送电子邮件转到https://accounts.google.com/b/0/DisplayUnlockCaptcha并单击继续。
- 这次：您可以使用您的应用发送电子邮件，并且允许所有操作。
More links:
https://support.google.com/accounts/answer/6010255https://productforums.google.com/forum/#!topic/gmail/9KCgzXY4G_c
更多链接：
https: //support.google.com/accounts/answer/6010255 https://productforums.google.com/forum/#!topic/gmail/9KCgzXY4G_c
回答by Sarfraz Khan
I am also facing same problem.
我也面临同样的问题。
Google does't give you direct open port access. If you are using your your google account for mail sending please Turn on the setting by clicking on this link. google go here : https://www.google.com/settings/security/lesssecureappsBest of luck hope it will work for you as well.
Google 不会为您提供直接的开放端口访问权限。如果您使用您的 google 帐户发送邮件，请单击此链接打开设置。谷歌去这里：https: //www.google.com/settings/security/lesssecureapps祝你好运，希望它也适用于你。
回答by Srini Kancharla
Its not just about enabling the "less secure apps" from google admin page.
它不仅仅是从谷歌管理页面启用“不太安全的应用程序”。
The above fix did not solve the issue for me. I contacted google and they asked me to add couple of TXT records to my DNS list. You will need a DKIM key that you will need to generate from the G Suite admin settings for gmail.
上述修复并没有为我解决问题。我联系了谷歌，他们要求我将几个 TXT 记录添加到我的 DNS 列表中。您将需要一个 DKIM 密钥，您需要通过 G Suite 管理设置为 Gmail 生成该密钥。
回答by SuperUser Sudo
- allow less secure apps from your google account settings https://www.google.com/settings/security/lesssecureapps
- open your gmail> goto settings > IMAP/POP settings > enable IMAP
- goto this url and turn this on (completing all these steps will surely work) https://www.google.com/accounts/DisplayUnlockCaptcha
- 允许从您的 Google 帐户设置中使用安全性较低的应用 https://www.google.com/settings/security/lesssecureapps
- 打开您的 Gmail > 转到设置 > IMAP/POP 设置 > 启用 IMAP
- 转到此网址并打开它（完成所有这些步骤肯定会起作用） https://www.google.com/accounts/DisplayUnlockCaptcha
official guide for help
官方帮助指南
https://support.google.com/mail/answer/7126229?hl=en-GB&visit_id=637246238859828954-474780158&rd=2
https://support.google.com/mail/answer/7126229?hl=zh-CN&visit_id=637246238859828954-474780158&rd=2
