尝试用java发送邮件时出现“异常读取响应”错误

下面是一个从java发送电子邮件的小代码

public static void sendMail(){
    Properties props = new Properties();
    props.put("mail.smtp.auth", "true");
    props.put("mail.smtp.host", "mail.domain.tld");
    props.put("mail.smtp.debug", "true");
            Session session = Session.getInstance(props,
      new javax.mail.Authenticator() {
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication("sender@domain.tdl", "pwd");
        }
      });
    try {
        Message message = new MimeMessage(session);
        message.setFrom(new InternetAddress("sender@domain.tdl"));
        message.setRecipients(Message.RecipientType.TO,
            InternetAddress.parse("receiver@yahoo.fr"));
        message.setSubject("Testing Subject");
        message.setContent("This is a test <b>HOWTO<b>", "text/html; charset=ISO-8859-1");
        Transport.send(message);
        System.out.println("Done");
    } catch (MessagingException e) {
        throw new RuntimeException(e);
    }
}

我不理解错误的原因，因为这段代码在过去对我有效。 以下是我正在使用的罐子：

dsn-1.6.0 gimap-1.6.0 imap-1.6.0 javax.mail-1.6.0 javax.mail-api-1.6.0 logging-mailhandler-1.6.0 mailapi-1.6.0 pop3-1.6.0 smtp-1.6.0 经过@Bill的修改后，我发现了一个新的错误

Exception in thread "main" java.lang.RuntimeException: javax.mail.MessagingException: Could not connect to SMTP host: mail.hereka.org, port: 25;
  nested exception is:
    javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
    at Test.main(Test.java:134)
Caused by: javax.mail.MessagingException: Could not connect to SMTP host: mail.hereka.org, port: 25;
  nested exception is:
    javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2196)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:726)
    at javax.mail.Service.connect(Service.java:366)
    at javax.mail.Service.connect(Service.java:246)
    at javax.mail.Service.connect(Service.java:267)
    at javax.mail.Transport.send0(Transport.java:252)
    at javax.mail.Transport.send(Transport.java:174)
    at Test.main(Test.java:130)
Caused by: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
    at sun.security.ssl.InputRecord.handleUnknownRecord(InputRecord.java:671)
    at sun.security.ssl.InputRecord.read(InputRecord.java:504)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:927)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1312)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1339)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1323)
    at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:619)
    at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:393)
    at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:238)
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2160)
    ... 7 more

但是如果我删除ssl属性，这就是新的错误

Exception in thread "main" java.lang.RuntimeException: javax.mail.MessagingException: Exception reading response;
  nested exception is:
    java.net.SocketException: Software caused connection abort: recv failed
    at Test.main(Test.java:134)
Caused by: javax.mail.MessagingException: Exception reading response;
  nested exception is:
    java.net.SocketException: Software caused connection abort: recv failed
    at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:2445)
    at com.sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.java:2307)
    at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:2340)
    at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:1808)
    at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1285)
    at javax.mail.Transport.send0(Transport.java:255)
    at javax.mail.Transport.send(Transport.java:174)
    at Test.main(Test.java:130)
Caused by: java.net.SocketException: Software caused connection abort: recv failed
    at java.net.SocketInputStream.socketRead0(Native Method)
    at java.net.SocketInputStream.read(SocketInputStream.java:152)
    at java.net.SocketInputStream.read(SocketInputStream.java:122)
    at com.sun.mail.util.TraceInputStream.read(TraceInputStream.java:126)
    at java.io.BufferedInputStream.fill(BufferedInputStream.java:235)
    at java.io.BufferedInputStream.read(BufferedInputStream.java:254)
    at com.sun.mail.util.LineInputStream.readLine(LineInputStream.java:104)
    at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:2425)
    ... 7 more

---

谢谢

这与jar无关，更多的是SMTP服务器错误。 你可以尝试使用

telnet mail.domain.tld

然后尝试连接到主机。我建议你包括一个像

props.put("mail.smtp.port", "portnumber");

---

您可以尝试使用标准端口25 unsecure或587 secure来代替。

谢谢@Guru我在端口25上尝试了telnet，即使控制台上有消息，连接也完成了。我们不授权使用此系统传输未经请求和/或批量电子邮件。在代码中，我还添加了您建议的props.putmail.smtp.port，portnumber；现在我在主线程java.lang.RuntimeException中出现了错误异常：javax.mail.SendFailedException:无效地址；嵌套异常为：com.sun.mail.smtp.SMTPAddressFailedException:550请在邮件客户端中打开smtp身份验证。名称550-[41.244.226.223]：未经身份验证，不允许63273通过此服务器550进行中继。如果仍然失败，请打开并将调试输出添加到上面的原始帖子中。

props.put("mail.smtp.port", "portnumber");