java - 通过 smtps 发送邮件时出错

Question

在执行以下行时连接到我的邮件服务器时出现以下异常

transport.connect("test.mailserver.com",465,"test.user@test.com","testpwd");

异常(exception)是:

(javax.mail.MessagingException) javax.mail.MessagingException: Exception reading response;
nested exception is:
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: subject/issuer name chaining check failed

下面是代码:

protected static Session initializeSession(MailMessage p_msg) throws Exception{

    //Get the SMTP Host
    Properties prop = System.getProperties();
    prop.put( "mail.smtps.host", "test.mailserver.com" );
    prop.put("mail.transport.protocol", "smtps");
    prop.put("mail.smtps.auth", true);

    Session session = Session.getInstance(prop,null);
    session.setDebug( p_msg.getDebugMode() );
    return session;
}   
protected static void sendMessage(MimeMessage p_msg)  throws Exception{

    Properties prop = System.getProperties();

    Session session = Session.getDefaultInstance(prop, null);
    Transport transport = session.getTransport("smtps");
        transport.connect("test.mailserver.com",465,"test.user@test.com","testpwd");
    transport.sendMessage(p_msg, p_msg.getAllRecipients());
    transport.close();
}

Answer 1

我依稀记得自己也遇到过这样的事情。事实证明，我错误地配置了 SSL，将证书以错误的顺序放入服务器的证书链中。典型 Web 浏览器中的 SSL 堆栈并不关心这一点，但(显然)Java 中的客户端 SSL 引擎无法(或不会)处理以错误顺序呈现链的服务器。

因此，如果您没有找到其他答案，请尝试查看您在邮件服务器上安装 SSL 证书等的方式。