PhpMailer 不发送邮件 - TLS 错误？

我在使用 phpmailer 发送电子邮件时遇到问题。

发送电子邮件的代码是：

$mail_User      = "[email protected] /cdn-cgi/l/email-protection";
$mail_Password  = "My Password";
$mail_address   = "[email protected] /cdn-cgi/l/email-protection";
$mail_Name      = "MyName";
$mail_Server    = "222.222.222.222";
$mail_Port      = 25;

    function SendHTMLMail($to, $cc, $bcc, $subject, $body)
    {
        global $mail_User, $mail_Password, $mail_address, $mail_Name, $mail_Server, $mail_Port;
        $correo = new PHPMailer;
        $correo->SMTPDebug = 3;                               // Enable verbose debug output
        $correo->SetLanguage("es", "/phpmailer/language/");
        $correo->IsSMTP();

        $correo->IsHTML(true);
        $correo->Host = $mail_Server;
        $correo->Port = $mail_Port;
        $correo->SMTPAuth =true;
        //$correo->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
        $correo->Username = $mail_User;
        $correo->Password = $mail_Password;
        $correo->From      = $mail_address;
        $correo->FromName  = $mail_Name;
        $correo->Subject = $subject;
        $correo->Body    = $body;
        $dest = explode (";", $to);
        for ($n=0; isset($dest[$n]); $n++) $correo->AddAddress($dest[$n]);
        $dest = explode (";", $cc);
        for ($n=0; isset($dest[$n]); $n++) $correo->AddCC($dest[$n]);
        $dest = explode (";", $bcc);
        for ($n=0; isset($dest[$n]); $n++) $correo->AddBCC($dest[$n]);
        if ($correo->Send())
            return "";
        else {
            AddLog("Correo no enviado: $correo->ErrorInfo");
            echo "<br>Correo no enviado: $correo->ErrorInfo<br>";
            return "Correo no enviado: $correo->ErrorInfo";
        }
    }

结果是：

2016-02-24 04:58:17 Connection: opening to 222.222.222.222:25, timeout=300, options=array (
                                      )
2016-02-24 04:58:17 Connection: opened
2016-02-24 04:58:17 SERVER -> CLIENT: 220-srv1.abcdef.com ESMTP Exim 4.86 #2 Wed, 24 Feb 2016 14:47:17 +0100 
                                      220-We do not authorize the use of this system to transport unsolicited, 
                                      220 and/or bulk e-mail.
2016-02-24 04:58:17 CLIENT -> SERVER: EHLO www.site.com
2016-02-24 04:58:18 SERVER -> CLIENT: 250-srv1.abcdef.com Hello www.doznyk.com [181.181.181.181]
                                      250-SIZE 52428800
                                      250-8BITMIME
                                      250-PIPELINING
                                      250-AUTH PLAIN LOGIN
                                      250-STARTTLS
                                      250 HELP
2016-02-24 04:58:18 CLIENT -> SERVER: STARTTLS
2016-02-24 04:58:18 SERVER -> CLIENT: 220 TLS go ahead
2016-02-24 04:58:18 SMTP Error: Could not connect to SMTP host.
2016-02-24 04:58:18 CLIENT -> SERVER: QUIT
2016-02-24 04:58:19 SERVER -> CLIENT: 221 srv1.abcdef.com closing connection
2016-02-24 04:58:19 Connection: closed
2016-02-24 04:58:19 SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

为什么phpmailer不发送邮件？如果代码行是注释，为什么它尝试使用 TLS？

我用假数据替换敏感数据，例如服务器名称和 IP。 如果我将端口从 25 更改为 587 并取消注释 tls 行，结果几乎相同。

谢谢

新的测试，同样的结果。

我按照 Synchro 的建议阅读了该文档。 我将端口从 25 更改为 587，并添加了行 $correo->SMTPAutoTLS = true;

$correo->SMTPAuth =true;
$correo->SMTPAutoTLS = true;
//$correo->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
$correo->Username = $mail_User;
$correo->Password = $mail_Password;

结果是：

2016-02-24 06:05:36 Connection: opening to 222.222.222.222:587, timeout=300, options=array (
                                      )
2016-02-24 06:05:37 Connection: opened
2016-02-24 06:05:37 SERVER -> CLIENT: 220-srv1.abcdef.com ESMTP Exim 4.86 #2 Wed, 24 Feb 2016 15:54:37 +0100 
                                      220-We do not authorize the use of this system to transport unsolicited, 
                                      220 and/or bulk e-mail.
2016-02-24 06:05:37 CLIENT -> SERVER: EHLO www.myserver.com
2016-02-24 06:05:38 SERVER -> CLIENT: 250-srv1.abcdef.com Hello www.doznyk.com [181.229.171.247]
                                      250-SIZE 52428800
                                      250-8BITMIME
                                      250-PIPELINING
                                      250-AUTH PLAIN LOGIN
                                      250-STARTTLS
                                      250 HELP
2016-02-24 06:05:38 CLIENT -> SERVER: STARTTLS
2016-02-24 06:05:38 SERVER -> CLIENT: 220 TLS go ahead
2016-02-24 06:05:39 SMTP Error: Could not connect to SMTP host.
2016-02-24 06:05:39 CLIENT -> SERVER: QUIT
2016-02-24 06:05:39 SERVER -> CLIENT: 221 srv1.abcdef.com closing connection
2016-02-24 06:05:39 Connection: closed

出色地。我做了很多测试，看不到文档中说我 Synchro 的部分，但 Synchro 是对的。

我添加了下一个代码，现在工作正常！

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

虽然我不使用 SSL，但我必须澄清我不使用 SSL，因为 phpmailer 会验证 SSL 是否可用。 或者必须正确配置

Thanks!