发送电子邮件phpmailer和javax.mail

Question

我有两个类似的代码部分，分别用java和php编写。 由于证书错误，PHP没有发送电子邮件-

  Connection failed. Error #2: stream_socket_enable_crypto():
  Peer certificate CN=*.hosting.com' did not match
  expected CN=smtp.anotherhosting.com'

但是java代码发送电子邮件没有任何问题，我不明白为什么。 （我到处都有问题- 如何使用Java跳过ssl检查？

这是代码：

的PHP：

<?php
    require './PHPMailer.php';
    require './SMTP.php';

    use PHPMailer\PHPMailer\PHPMailer;

    $mail = new PHPMailer(true);
    try {
        $mail->SMTPDebug = 4;
        $mail->isSMTP();
        $mail->Host = 'smtp.anotherhosting.com';
        $mail->SMTPAuth = true;
        $mail->Username = 'username@anotherhosting.com';
        $mail->Password = 'password';
        $mail->SMTPSecure = 'tls';
        $mail->Port = 587;

        //Recipients
        $mail->setFrom('from@company.com');
        $mail->addAddress('myemail@company.com');
        $mail->isHTML(true);
        $mail->Subject = 'Here is the subject12';
        $mail->Body    = 'This is the HTML message bo22dy <b>in bold!</b>';

        $mail->send();
        echo 'Message has been sent';
    } catch (Exception $e) {
        echo 'Message could not be sent. Mailer Error: ', $mail->ErrorInfo;
    }
    try {
        $mail->smtpClose();
    } catch (Exception $e) {
        echo $e->getTraceAsString();
    }

和Java：

import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Properties;

public class Main {
    public static void main(String[] args) {
        final String username = "username@anotherhosting.com";
        final String password = "password";

        Properties props = new Properties();
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.starttls.enable", "true");
        props.put("mail.smtp.host", "smtp.anotherhosting.com");
        props.put("mail.smtp.port", "587");

        Session session = Session.getInstance(props,
                new javax.mail.Authenticator() {
                    protected PasswordAuthentication getPasswordAuthentication() {
                        return new PasswordAuthentication(username, password);
                    }
                });

        session.setDebug(true);
        try {

            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress("from@company.com"));
            message.setRecipients(Message.RecipientType.TO,
                    InternetAddress.parse("myemail@company.com"));
            message.setSubject("Testing Subject");
            message.setText("Dear Mail Crawler,"
                    + "\n\n No spam to my email, please!");

            Transport.send(message);

            System.out.println("Done");

        } catch (MessagingException e) {
            throw new RuntimeException(e);
        }
    }
}

我的任务是使用php代码实现电子邮件发送功能。 从我当前的角度来看，它由于smtp从一台主机重定向到另一台主机而失败。 phpmailer最有可能获得了host1，接收到host2的重定向，从host2获得证书并将此证书与host1进行比较。 同时，java客户端可以做的很好。 如果有人知道如何解决此类问题，请告诉我。

另外，当php代码尝试调用stream_socket_enable_crypto时，它在402行失败。

这是日志文件：java：

DEBUG: setDebug: JavaMail version 1.4ea
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.anotherhosting.com", port 587, isSSL false
220 mailpod.hosting.com ESMTP
DEBUG SMTP: connected to host "smtp.anotherhosting.com", port: 587

EHLO degr [most probably my computer name]
250-mailpod.hosting.com
250-STARTTLS
250-PIPELINING
250-8BITMIME
250-SIZE 65000000
250 AUTH LOGIN PLAIN CRAM-MD5
DEBUG SMTP: Found extension "STARTTLS", arg ""
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "SIZE", arg "65000000"
DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN CRAM-MD5"
STARTTLS
220 ready for tls
EHLO degr
250-mailpod.hosting.com
250-PIPELINING
250-8BITMIME
250-SIZE 65000000
250 AUTH LOGIN PLAIN CRAM-MD5
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "SIZE", arg "65000000"
DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN CRAM-MD5"
DEBUG SMTP: Attempt to authenticate
AUTH LOGIN
334 [auth hash here]
[auth hash here]
334 [auth hash here]
[auth hash here]
235 ok, go ahead (#2.0.0)
DEBUG SMTP: use8bit false
MAIL FROM:<from@company.com>
250 ok
RCPT TO:<myemail@company.com>
250 ok
DEBUG SMTP: Verified Addresses
DEBUG SMTP:   myemail@company.com
DATA
354 go ahead
From: from@company.com
To: myemail@company.com
Message-ID: <1338668845.01537892151523.JavaMail.myemail@company.com>
Subject: Testing Subject
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Dear Mail Crawler,

 No spam to my email, please!
.
250 ok 1537892155 qp 173024
QUIT
221 mailpod.hosting.com
Done

的PHP：

2018-09-25 16:26:35 Connection: opening to smtp.anotherhosting.com:587, timeout=300, options=array()
2018-09-25 16:26:35 Connection: opened
2018-09-25 16:26:35 SMTP INBOUND: "220 mailpod.hosting.com ESMTP"
2018-09-25 16:26:35 SERVER -> CLIENT: 220 mailpod.hosting.com ESMTP
2018-09-25 16:26:37 CLIENT -> SERVER: EHLO localhost
2018-09-25 16:26:38 SMTP INBOUND: "250-mailpod.hosting.com"
2018-09-25 16:26:38 SMTP INBOUND: "250-STARTTLS"
2018-09-25 16:26:38 SMTP INBOUND: "250-PIPELINING"
2018-09-25 16:26:38 SMTP INBOUND: "250-8BITMIME"
2018-09-25 16:26:38 SMTP INBOUND: "250-SIZE 65000000"
2018-09-25 16:26:38 SMTP INBOUND: "250 AUTH LOGIN PLAIN CRAM-MD5"
2018-09-25 16:26:38 SERVER -> CLIENT: 250-mailpod.hosting.com250-STARTTLS250-PIPELINING250-8BITMIME250-SIZE 65000000250 AUTH LOGIN PLAIN CRAM-MD5
2018-09-25 16:26:38 CLIENT -> SERVER: STARTTLS
2018-09-25 16:26:38 SMTP INBOUND: "220 ready for tls"
2018-09-25 16:26:38 SERVER -> CLIENT: 220 ready for tls
2018-09-25 16:26:38 Connection failed. Error #2: stream_socket_enable_crypto(): Peer certificate CN=*.hosting.com' did not match expected CN=smtp.anotherhosting.com' [C:\project\SMTP.php line 402]
SMTP Error: Could not connect to SMTP host.
2018-09-25 16:26:39 CLIENT -> SERVER: QUIT
2018-09-25 16:26:39 
2018-09-25 16:26:39 
2018-09-25 16:26:39 
2018-09-25 16:26:39 Connection: closed
SMTP Error: Could not connect to SMTP host.
Message could not be sent. Mailer Error: SMTP Error: Could not connect to SMTP host.

由https://www.networksolutions.com/提供的PS smpt服务

Answer 1

对。 因此，您的Java代码有一个错误，该错误使中间人攻击成功。 在PHP中，通过完全按照TLS的设计来成功防止这种情况。

发生的是您的ISP防火墙处的TCP重定向，这对两个客户端都是不可见的。 您可以禁用证书检查（如故障排除指南中所述 ），但实际上不应该这样做。 显式连接到正确的名称（ mailpod.hosting.com ），或者使用不干扰您流量的托管服务提供商。

Answer 2

这可能是您的临时解决方案。

$mail->SMTPOptions = array(
    'ssl' => array(
        'verify_peer' => false,
        'verify_peer_name' => false,
        'allow_self_signed' => true
    )
);

您可以通过PHPMailer 5.2.10中引入的SMTPOptions属性允许不安全的连接（可以通过对早期版本中的SMTP类进行子类化来实现此目的）， 尽管不 建议这样做 ， 因为这样 做会破坏很多使用安全 传输 的点 。

有关SMTPOptions更多信息，请SMTPOptions Wiki。