Question

我发送电子邮件的java SSL证书有以下错误：

Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)
... 23 more

我使用InstallCert.java生成了证书，现在我收到以下错误：

com.sun.mail.smtp.SMTPSendFailedException: 550 SMTP authentication mandatory

at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:1388)
at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:959)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:583)
at com.MailerPecUtility.sendMail(MailerPecUtility.java:201)
at com.MailerPecUtility.main(MailerPecUtility.java:266)

任何人都知道如何解决这个问题？感谢

Answer 1

如JavaMail FAQ所述，您需要对服务器进行身份验证。除了常见问题解答中的示例外，您还可以使用Transport.send method that takes a username and password。

Answer 2

而不是这一行：

 transport.connect(specProps.getProperty("mail.smtp.host"), port, user, pass);

我必须使用它：

 transport.connect( null,smtpUser,smtpPassword);

因此，通过以下方式，我可以毫无错误地发送电子邮件：

         message.setText("The email body text");
         Transport transport = session.getTransport("smtp");
         transport.connect( null,smtpUser,smtpPassword);
         message.saveChanges();
         Transport.send(message);
         System.out.println("Message Has been sent!");

Java Mail错误：550 SMTP身份验证

2 个答案: