openshift上的java邮件程序中的身份验证错误

Question

我正在尝试使用 Java Mail API 和 Gmail SMTP 服务器发送邮件。这是我的代码：

final String username = "myusername@gmail.com";
final String password = "mypassword";
Properties props = new Properties();
props.put("mail.smtp.user", username);
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.port", "25");
props.put("mail.debug", "true");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.EnableSSL.enable", "true");
props.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.setProperty("mail.smtp.socketFactory.fallback", "false");
props.setProperty("mail.smtp.port", "465");
props.setProperty("mail.smtp.socketFactory.port", "465");

Session session = Session.getInstance(props,
    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(clientEmail));
    message.setSubject(subject);
    message.setText("Dear "+clientName+",\n\n  "+body);

    Transport.send(message);
} catch (MessagingException e) {
    throw new RuntimeException(e);
}

它在本地运行完美，但在 Openshift 上出现 AuthenticationFailedException。以下是 openshift 错误日志。

DEBUG: JavaMail version 1.4.7
DEBUG: successfully loaded resource: /META-INF/javamail.default.providers
DEBUG: Tables of loaded providers
DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPSSLTransport=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Oracle], com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Orcle], com.sun.mail.imap.IMAPSSLStore=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Oracle],com.sun.mail.pop3.POP3SSLStore=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Oracle], com.sun.mail.imap.IMAPStore=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Oracle], com.sun.mail.pop3.POP3Store=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Oracle]}
DEBUG: Providers Listed By Protocol: {imaps=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Oracle], imap=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Oracle], smtps=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Oracle], pop3=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Oracle], pop3s=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Oracle], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]}
DEBUG: successfully loaded resource: /META-INF/javamail.default.address.map
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.gmail.com", port 465, isSSL false 220 mx.google.com       ESMTP k9sm38376122qaj.7 - gsmtp
DEBUG SMTP: connected to host "smtp.gmail.com", port: 465 EHLO ex-std-node454.prod.rhcloud.com 250-mx.google.com at your service, [54.166.173.168] 250-SIZE 35882577 250-8BITMIME 250-AUTH LOGIN PLAIN XOAUTH XOAUTH2 PLAIN-CLIENTTOKEN 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-CHUNKING 250 SMTPUTF8
DEBUG SMTP: Found extension "SIZE", arg "35882577"
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN XOAUTH XOAUTH2 PLAIN-CLIENT TOKEN"
DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Found extension "CHUNKING", arg ""
DEBUG SMTP: Found extension "SMTPUTF8", arg ""
DEBUG SMTP: STARTTLS requested but already using SSL
DEBUG SMTP: Attempt to authenticate using mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM
DEBUG SMTP: AUTH LOGIN command trace suppressed
http://mooark-romitchhabra.rhcloud.com/mooark/ADP/Thanks.jsp
DEBUG SMTP: AUTH LOGIN failed
Exception in thread "Thread-4" java.lang.RuntimeException: javax.mail.AuthenticationFailedException: 534-5.7.14 <https://accounts.google.com/ContinueSignIn?sarp=1&scc=1&plt=AKgnsbvrd
534-5.7.14 sdnRpIjv6joT7_WeGn1AAxAwQL6nET1nfNhi7oUeKqgdxHVmsc5XgZ4UFD26KJ0PfVSnLO
534-5.7.14 m6C8BUAB5Xk3Yp0L5Is0c0mUcP5MQMA4exuzGXiaBe0zPxMtfRLPz_y8shSO0WwDwjsV6D
534-5.7.14 ZP5fRWHRtbMDoI0hx81GBM59dc7tAM4nSsbTl1J3MoQfzeaK3_WYZ-BLtUl28P-qgcSkd
534-5.7.14 eZMQKxw> 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 k9sm38376122qaj.7 - gsmtp
    at com.adp.thread.SendMail.run(SendMail.java:89)
Caused by: javax.mail.AuthenticationFailedException: 534-5.7.14    <https://accounts.google.com/ContinueSignIn?sarp=1&scc=1&plt=AKgnsbvrd
534-5.7.14 sdnRpIjv6joT7_WeGn1AAxAwQL6nET1nfNhi7oUeKqgdxHVmsc5XgZ4UFD26KJ0PfVSnLO
534-5.7.14 m6C8BUAB5Xk3Yp0L5Is0c0mUcP5MQMA4exuzGXiaBe0zPxMtfRLPz_y8shSO0WwDwjsV6D
534-5.7.14 ZP5fRWHRtbMDoI0hx81GBM59dc7tAM4nSsbTl1J3MoQfzeaK3_WYZ-BLtUl28P-qgcSkdh
534-5.7.14 eZMQKxw> 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 k9sm38376122qaj.7 - gsmtp
    at com.sun.mail.smtp.SMTPTransport$Authenticator.authenticate(SMTPTransport.java:826)
    at com.sun.mail.smtp.SMTPTransport.authenticate(SMTPTransport.java:761)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:685)
    at javax.mail.Service.connect(Service.java:317)
    at javax.mail.Service.connect(Service.java:176)
    at javax.mail.Service.connect(Service.java:125)
    at javax.mail.Transport.send0(Transport.java:194)
    at javax.mail.Transport.send(Transport.java:124)
    at com.adp.thread.SendMail.run(SendMail.java:85)

我已经尝试了Java Mail fails to authenticate smtp setting in openshift server 给出的所有答案。我尝试登录 gmail 帐户，然后在同一个浏览器中通过我的应用程序发送邮件，但仍然无法正常工作。双重验证未在 gmail 帐户中激活，并且该帐户不受现代安全标准的保护，因此它允许连接不太安全的应用程序（根据 gmail）。

替代解决方案：我尝试使用 Mailgun 代替 Gmail SMTP，它公开其 API 以将邮件作为 REST 服务发送。对于可以使用免费帐户发送的邮件数量有上限的开发人员来说，它是免费的。它在 Openshift 上运行良好。在这里，我创建了一个使用 Jersey 2.x 使用 Mailgun 服务的示例。 https://gist.github.com/chhabraromit/0c0a16545dd31f471332

Answer 1

原因：Google 阻止了来自未知位置的访问（生产中的应用）

解决方案： 转到http://www.google.com/accounts/DisplayUnlockCaptcha 并点击继续（这将授予注册新应用程序的 10 分钟访问权限）。在此之后，我在生产中的应用程序开始发送电子邮件；）

Answer 2

Gmail 确实希望您从运行应用程序的同一台计算机上的浏览器登录。当您的应用程序在 openshift 上运行时，这是不可能的。

您可以尝试在运行浏览器的同一台机器上运行您的应用程序，看看这是否会让 Gmail 相信您的应用程序也可以从其他机器登录。