带有MS Exchange的JavaMail:服务器和客户端都不支持身份验证机制

Question

我几天来一直试图从Grails应用程序发送邮件但没有成功.我正在使用:

• grails 1.3.7
• 邮件1.0插件
• spring-security-core 1.2.6插件
• tomcat 7.0.23

Specifficaly我正在尝试使用部署在Tomcat服务器上的应用程序发送邮件,该端口25没有身份验证,没有SSL.

我已经尝试从部署了应用程序的VMWare虚拟机发送带有telnet的消息并且它已经通过了.

这是我发送邮件的课程:

public boolean sendMessage(String to, String msgSubject, String msgText) 
{
    String host = "mail.mydomain.com";
    String username = "myuser@mydomain.com"; // your authsmtp username
    String password = "mypassword" // your authsmtp password
    String from = "myuser@mydomain.com";

    Properties props = System.getProperties();
    props.put("mail.smtp.host", host);
    props.put("mail.smtp.user", username);
    props.put("mail.smtp.password", password);
    props.put("mail.smtp.port", "25"); // thish is the port recommended by authsmtp
    props.put("mail.smtp.auth", "false");

    Session session = Session.getDefaultInstance(props, null);
    MimeMessage message = new MimeMessage(session);
    message.setFrom(new InternetAddress(from));

    InternetAddress to_address = new InternetAddress(to);
    message.addRecipient(Message.RecipientType.TO, to_address);

    message.setSubject(msgSubject);
    message.setText(msgText);
    Transport transport = session.getTransport("smtp");
    transport.connect(host, username, password);
    transport.sendMessage(message, message.getAllRecipients());
    transport.close();
    return true;
}

这是错误堆栈跟踪:

javax.mail.AuthenticationFailedException: No authentication mechansims supported by both server and client

at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:590)

at javax.mail.Service.connect(Service.java:291)

at javax.mail.Service.connect(Service.java:172)

at javax.mail.Service$connect.call(Unknown Source)

at org.helpdesk.MymailService.sendMessage(MymailService.groovy:37)

at org.helpdesk.MymailService$sendMessage.call(Unknown Source)

at org.helpdesk.RequestController$_closure13.doCall(RequestController.groovy:247)

at org.helpdesk.RequestController$_closure13.doCall(RequestController.groovy)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

我已经阅读了几十个帖子,考虑到这样的问题,但我仍然无法解决问题.任何帮助表示赞赏.

*编辑:*如果没有身份验证,是否可能在使用带有Exchange服务器SMTP的javaMail发送邮件时出现问题？

Answer 1

如果您尝试在未经身份验证的情况下连接到邮件服务器,请调用不带用户名和密码的connect方法.如果您传递用户名和密码,它认为您确实要进行身份验证,并且由于无法找到服务器支持的身份验证机制,因此无法进行身份验证.

Answer 2

在我的情况下,我不得不设置属性

"mail.smtp.ehlo"

至 "false"

(除了加入到设置属性"mail.smtp.auth"来"false"然而其似乎是默认根据此链接)

在设置"mail.smtp.ehlo"于"false"我看到下面的调试输出(通过设置属性启用"mail.debug"到"true"):

DEBUG SMTP: Attempt to authenticate using mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM 
DEBUG SMTP: mechanism LOGIN not supported by server
DEBUG SMTP: mechanism PLAIN not supported by server
DEBUG SMTP: mechanism DIGEST-MD5 not supported by server
DEBUG SMTP: mechanism NTLM not supported by server

然后得到相同的javax.mail.AuthenticationFailedException.

(在这种情况下,SMTP服务器是Microsoft的)