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我在 Wildfly 8 中成功使用了来自 org.apache.commons.mail.SimpleEmail 的 SimpleEmail。现在，我迁移到 Wildfy 9，SimpleEmail 每次都会引发连接异常。

email.send()在下面的代码中引发了异常：

try
{
    Email email = new SimpleEmail();
    email.setHostName("mail.gmx.net");
    email.setAuthenticator(new DefaultAuthenticator("sender@gmx.ch", "password"));
    email.setSSLOnConnect(true);
    email.setFrom("sender@gmx.ch");
    email.setCharset(org.apache.commons.mail.EmailConstants.UTF_8);
    email.setSubject("TestMail");
    email.setMsg("This is a test mail ... :-)");
    email.addTo("receiver@gmx.ch");
    email.send();

}

异常跟踪：

org.apache.commons.mail.EmailException: Sending the email to the following server failed : mail.gmx.net:465
    at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1421)
    at org.apache.commons.mail.Email.send(Email.java:1448)
    ...

Caused by: javax.mail.MessagingException: Could not connect to SMTP host: mail.gmx.net, port: 465, response: -1
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2042)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:697)
    at javax.mail.Service.connect(Service.java:386)
    at javax.mail.Service.connect(Service.java:245)
    at javax.mail.Service.connect(Service.java:194)
    at javax.mail.Transport.send0(Transport.java:253)
    at javax.mail.Transport.send(Transport.java:124)
    at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1411)
    ... 53 more

有人知道我需要在哪里搜索问题吗？

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