PHPMailer 关闭连接
PHPMailer closes connection
我正在尝试使用 PHPMailer 向我在另一个 Ubuntu 16.04 VPS 上使用 Mail-In-A-Box（使用 Postfix）托管的 SMTP 服务器发送电子邮件，但是我有一个错误
邮件 vps 托管在 Digital Ocean 上，website/php 一个
也是如此
这是我 运行 代码时得到的：
2019-02-26 17:54:01 CLIENT -> SERVER: EHLO mail
2019-02-26 17:54:01 SERVER -> CLIENT: 250-mail.ultracore.it
250-PIPELINING
250-SIZE 134217728
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250 SMTPUTF8
2019-02-26 17:54:01 CLIENT -> SERVER: STARTTLS
2019-02-26 17:54:01 SERVER -> CLIENT: 220 2.0.0 Ready to start TLS
2019-02-26 17:54:01 SMTP Error: Could not connect to SMTP host.
2019-02-26 17:54:01 CLIENT -> SERVER: QUIT
2019-02-26 17:54:01 SERVER -> CLIENT:
2019-02-26 17:54:01 SMTP ERROR: QUIT command failed:
2019-02-26 17:54:01 SMTP Error: Could not connect to SMTP host.
这是我用来发送电子邮件的代码：
function sendEmail($from, $password, $email, $subject, $messageHtml, $message)
{
$mail = new PHPMailer(true);
//$pop = POP3::popBeforeSmtp('pop3.ultracore.it', 110, 1, $from, $password, 2);
try {
//Server settings
$mail->SMTPDebug = 2; // Enable verbose debug output
$mail->isSMTP(); // Set mailer to use SMTP
$mail->Host = 'smtp.ultracore.it'; // Specify main and backup SMTP servers
$mail->SMTPAuth = true; // Enable SMTP authentication
$mail->Username = $from; // SMTP username
$mail->Password = $password; // SMTP password
$mail->SMTPSecure = 'ssl'; // Enable TLS encryption, `ssl` also accepted
$mail->Port = 587; // TCP port to connect to
//Recipients
$mail->setFrom($from, $from);
$mail->addAddress($email, 'Joe User'); // Add a recipient
$mail->addReplyTo('support@ultracore.it', 'Support');
//Content
$mail->isHTML(true); // Set email format to HTML
$mail->Subject = $subject;
$mail->Body = $messageHtml;
$mail->AltBody = $message;
$mail->send();
echo 'The message has been sent';
} catch (Exception $e) {
echo $mail->ErrorInfo;
}
}
修改了PHPMailer的例子。
如您所见，我尝试使用 popBeforeSMTP 函数，但我遇到了同样的错误，之前还有一个错误：
<pre>Connecting to the POP3 server raised a PHP warning:errno: 2 errstr: fsockopen(): unable to connect to pop3.ultracore.it:110 (Connection refused); errfile: /var/www/html/vendor/phpmailer/phpmailer/src/POP3.php; errline: 238</pre><pre>Connecting to the POP3 server raised a PHP warning:errno: 2 errstr: fsockopen(): unable to connect to pop3.ultracore.it:110 (Connection refused); errfile: /var/www/html/vendor/phpmailer/phpmailer/src/POP3.php; errline: 238Failed to connect to server pop3.ultracore.it on port 110. errno: 111; errstr: Connection refused</pre>
我尝试使用 ssl 而不是 tls，但我收到了这个：
2019-02-26 18:03:52 SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshootingr`
我知道其他一些用户也问过这样的问题，但是 none 我尝试过的解决方案对我有用。
我已经使用此行通过作曲家导入了 PHPMailer
"require": {
"phpmailer/phpmailer": "~6.0"
}
更新
我把代码改成这样（仍然来自 PHPMailer 示例）
function sendEmail($from, $password, $to, $subject, $messageHtml)
{
$smtp_settings = array(
"debug" => 2,
"host" => "smtp.ultracore.it",
"port" => 587,
"auth" => true,
"encryption" => "tls",
"reply_address" => "support@ultracore.it",
"peer_name" => "smtp.ultracore.it",
"verify_peer" => true,
"verify_depth" => 3,
"allow_self_signed" => false,
"cafile" => "/var/www/html/certificates/ssl_private_key.pem"
);
$mail = new PHPMailer;
//Tell PHPMailer to use SMTP
$mail->isSMTP();
//Enable SMTP debugging
// 0 = off (for production use)
// 1 = client messages
// 2 = client and server messages
$mail->SMTPDebug = $smtp_settings['debug'];
//Set the hostname of the mail server
$mail->Host = $smtp_settings['host'];
//Set the SMTP port number - 587 for authenticated TLS, a.k.a. RFC4409 SMTP submission
$mail->Port = $smtp_settings['port'];
//Set the encryption system to use - ssl (deprecated) or tls
$mail->SMTPSecure = $smtp_settings['encryption'];
//Custom connection options
//Note that these settings are INSECURE
$mail->SMTPOptions = array(
'ssl' => [
'verify_peer' => $smtp_settings['verify_peer'],
'verify_depth' => $smtp_settings['verify_depth'],
'allow_self_signed' => $smtp_settings['allow_self_signed'],
'peer_name' => $smtp_settings['peer_name'],
'cafile' => $smtp_settings['cafile'],
],
);
//Whether to use SMTP authentication
$mail->SMTPAuth = $smtp_settings['auth'];
//Username to use for SMTP authentication - use full email address for gmail
$mail->Username = $from;
//Password to use for SMTP authentication
$mail->Password = $password;
//Set who the message is to be sent from
$mail->setFrom($from, 'First Last');
//Set who the message is to be sent to
$mail->addAddress($to, 'John Doe');
//Set the subject line
$mail->Subject = $subject;
//Read an HTML message body from an external file, convert referenced images to embedded,
//convert HTML into a basic plain-text alternative body
$mail->msgHTML($messageHtml, __DIR__);
//Send the message, check for errors
if (!$mail->send()) {
echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
echo 'Message sent!';
}
}
但是我有同样的错误
2019-02-26 21:48:23 SERVER -> CLIENT: 220 mail.ultracore.it ESMTP Hi, I'm a Mail-in-a-Box (Ubuntu/Postfix; see https://mailinabox.email/)
2019-02-26 21:48:23 CLIENT -> SERVER: EHLO ultracore.it
2019-02-26 21:48:23 SERVER -> CLIENT: 250-mail.ultracore.it250-PIPELINING250-SIZE 134217728250-VRFY250-ETRN250-STARTTLS250-ENHANCEDSTATUSCODES250-8BITMIME250-DSN250 SMTPUTF8
2019-02-26 21:48:23 CLIENT -> SERVER: STARTTLS
2019-02-26 21:48:23 SERVER -> CLIENT: 220 2.0.0 Ready to start TLS
SMTP Error: Could not connect to SMTP host.
2019-02-26 21:48:23 CLIENT -> SERVER: QUIT
2019-02-26 21:48:23 SERVER -> CLIENT:
2019-02-26 21:48:23 SMTP ERROR: QUIT command failed:
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Mailer Error: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
我尝试将 cafile 切换到所有这些文件：
files I tried
我做错了吗？这些文件在网站的 VPS 上，我已经通过 Mail-In-A-Box 的管理面板将证书应用到服务器。
我有 CloudFlare，但是地址 smtp.ultracore.it 不受 cloudflare 的保护，所有证书都是在 Mail VPS 地址上创建的，所以 ultracore.it 是用邮件地址创建的。ultracore.it, 不是网站的...
密码
echo (extension_loaded('openssl')?'SSL loaded':'SSL not loaded')."<br>";
returns这个
SSL loaded
您正在端口 587 上使用 SMTPSecure = 'ssl'（隐式 TLS），它需要显式 TLS (STARTTLS)。这在所有示例和文档中都有介绍。
当 STARTTLS 失败时，很可能是由于无效的证书或无效的 CA 证书，同样是 covered in the troubleshooting guide。
不要使用 POP-before-SMTP；那是一种非常古老的身份验证机制，不应使用。
我将设置 "verify_peer" 固定为 false，所以我的代码现在如下所示：
function sendEmail($from, $password, $to, $subject, $messageHtml)
{
$smtp_settings = array(
"debug" => 2,
"host" => "mail.ultracore.it",
"port" => 587,
"auth" => true,
"encryption" => "tls",
"reply_address" => "support@ultracore.it",
"peer_name" => "mail.ultracore.it",
"verify_peer" => false,
"verify_depth" => 3,
"allow_self_signed" => true,
"cafile" => "/var/www/html/certificates/ssl_certificate.pem"
);
$mail = new PHPMailer;
//Tell PHPMailer to use SMTP
$mail->isSMTP();
//Enable SMTP debugging
// 0 = off (for production use)
// 1 = client messages
// 2 = client and server messages
$mail->SMTPDebug = $smtp_settings['debug'];
//Set the hostname of the mail server
$mail->Host = $smtp_settings['host'];
//Set the SMTP port number - 587 for authenticated TLS, a.k.a. RFC4409 SMTP submission
$mail->Port = $smtp_settings['port'];
//Set the encryption system to use - ssl (deprecated) or tls
$mail->SMTPSecure = $smtp_settings['encryption'];
//Custom connection options
//Note that these settings are INSECURE
$mail->SMTPOptions = array(
'ssl' => [
'verify_peer' => $smtp_settings['verify_peer'],
'verify_depth' => $smtp_settings['verify_depth'],
'allow_self_signed' => $smtp_settings['allow_self_signed'],
'peer_name' => $smtp_settings['peer_name'],
'cafile' => $smtp_settings['cafile'],
],
);
//Whether to use SMTP authentication
$mail->SMTPAuth = $smtp_settings['auth'];
//Username to use for SMTP authentication - use full email address for gmail
$mail->Username = $from;
//Password to use for SMTP authentication
$mail->Password = $password;
//Set who the message is to be sent from
$mail->setFrom($from, 'First Last');
//Set who the message is to be sent to
$mail->addAddress($to, 'John Doe');
//Set the subject line
$mail->Subject = $subject;
//Read an HTML message body from an external file, convert referenced images to embedded,
//convert HTML into a basic plain-text alternative body
$mail->msgHTML($messageHtml, __DIR__);
//Send the message, check for errors
if (!$mail->send()) {
echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
echo 'Message sent!';
}
}
我正在尝试使用 PHPMailer 向我在另一个 Ubuntu 16.04 VPS 上使用 Mail-In-A-Box（使用 Postfix）托管的 SMTP 服务器发送电子邮件，但是我有一个错误
邮件 vps 托管在 Digital Ocean 上，website/php 一个
也是如此
这是我 运行 代码时得到的：
2019-02-26 17:54:01 CLIENT -> SERVER: EHLO mail
2019-02-26 17:54:01 SERVER -> CLIENT: 250-mail.ultracore.it
250-PIPELINING
250-SIZE 134217728
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250 SMTPUTF8
2019-02-26 17:54:01 CLIENT -> SERVER: STARTTLS
2019-02-26 17:54:01 SERVER -> CLIENT: 220 2.0.0 Ready to start TLS
2019-02-26 17:54:01 SMTP Error: Could not connect to SMTP host.
2019-02-26 17:54:01 CLIENT -> SERVER: QUIT
2019-02-26 17:54:01 SERVER -> CLIENT:
2019-02-26 17:54:01 SMTP ERROR: QUIT command failed:
2019-02-26 17:54:01 SMTP Error: Could not connect to SMTP host.
这是我用来发送电子邮件的代码：
function sendEmail($from, $password, $email, $subject, $messageHtml, $message)
{
$mail = new PHPMailer(true);
//$pop = POP3::popBeforeSmtp('pop3.ultracore.it', 110, 1, $from, $password, 2);
try {
//Server settings
$mail->SMTPDebug = 2; // Enable verbose debug output
$mail->isSMTP(); // Set mailer to use SMTP
$mail->Host = 'smtp.ultracore.it'; // Specify main and backup SMTP servers
$mail->SMTPAuth = true; // Enable SMTP authentication
$mail->Username = $from; // SMTP username
$mail->Password = $password; // SMTP password
$mail->SMTPSecure = 'ssl'; // Enable TLS encryption, `ssl` also accepted
$mail->Port = 587; // TCP port to connect to
//Recipients
$mail->setFrom($from, $from);
$mail->addAddress($email, 'Joe User'); // Add a recipient
$mail->addReplyTo('support@ultracore.it', 'Support');
//Content
$mail->isHTML(true); // Set email format to HTML
$mail->Subject = $subject;
$mail->Body = $messageHtml;
$mail->AltBody = $message;
$mail->send();
echo 'The message has been sent';
} catch (Exception $e) {
echo $mail->ErrorInfo;
}
}
修改了PHPMailer的例子。 如您所见，我尝试使用 popBeforeSMTP 函数，但我遇到了同样的错误，之前还有一个错误：
<pre>Connecting to the POP3 server raised a PHP warning:errno: 2 errstr: fsockopen(): unable to connect to pop3.ultracore.it:110 (Connection refused); errfile: /var/www/html/vendor/phpmailer/phpmailer/src/POP3.php; errline: 238</pre><pre>Connecting to the POP3 server raised a PHP warning:errno: 2 errstr: fsockopen(): unable to connect to pop3.ultracore.it:110 (Connection refused); errfile: /var/www/html/vendor/phpmailer/phpmailer/src/POP3.php; errline: 238Failed to connect to server pop3.ultracore.it on port 110. errno: 111; errstr: Connection refused</pre>
我尝试使用 ssl 而不是 tls，但我收到了这个：
2019-02-26 18:03:52 SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshootingr`
我知道其他一些用户也问过这样的问题，但是 none 我尝试过的解决方案对我有用。
我已经使用此行通过作曲家导入了 PHPMailer
"require": {
"phpmailer/phpmailer": "~6.0"
}
更新
我把代码改成这样（仍然来自 PHPMailer 示例）
function sendEmail($from, $password, $to, $subject, $messageHtml)
{
$smtp_settings = array(
"debug" => 2,
"host" => "smtp.ultracore.it",
"port" => 587,
"auth" => true,
"encryption" => "tls",
"reply_address" => "support@ultracore.it",
"peer_name" => "smtp.ultracore.it",
"verify_peer" => true,
"verify_depth" => 3,
"allow_self_signed" => false,
"cafile" => "/var/www/html/certificates/ssl_private_key.pem"
);
$mail = new PHPMailer;
//Tell PHPMailer to use SMTP
$mail->isSMTP();
//Enable SMTP debugging
// 0 = off (for production use)
// 1 = client messages
// 2 = client and server messages
$mail->SMTPDebug = $smtp_settings['debug'];
//Set the hostname of the mail server
$mail->Host = $smtp_settings['host'];
//Set the SMTP port number - 587 for authenticated TLS, a.k.a. RFC4409 SMTP submission
$mail->Port = $smtp_settings['port'];
//Set the encryption system to use - ssl (deprecated) or tls
$mail->SMTPSecure = $smtp_settings['encryption'];
//Custom connection options
//Note that these settings are INSECURE
$mail->SMTPOptions = array(
'ssl' => [
'verify_peer' => $smtp_settings['verify_peer'],
'verify_depth' => $smtp_settings['verify_depth'],
'allow_self_signed' => $smtp_settings['allow_self_signed'],
'peer_name' => $smtp_settings['peer_name'],
'cafile' => $smtp_settings['cafile'],
],
);
//Whether to use SMTP authentication
$mail->SMTPAuth = $smtp_settings['auth'];
//Username to use for SMTP authentication - use full email address for gmail
$mail->Username = $from;
//Password to use for SMTP authentication
$mail->Password = $password;
//Set who the message is to be sent from
$mail->setFrom($from, 'First Last');
//Set who the message is to be sent to
$mail->addAddress($to, 'John Doe');
//Set the subject line
$mail->Subject = $subject;
//Read an HTML message body from an external file, convert referenced images to embedded,
//convert HTML into a basic plain-text alternative body
$mail->msgHTML($messageHtml, __DIR__);
//Send the message, check for errors
if (!$mail->send()) {
echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
echo 'Message sent!';
}
}
但是我有同样的错误
2019-02-26 21:48:23 SERVER -> CLIENT: 220 mail.ultracore.it ESMTP Hi, I'm a Mail-in-a-Box (Ubuntu/Postfix; see https://mailinabox.email/)
2019-02-26 21:48:23 CLIENT -> SERVER: EHLO ultracore.it
2019-02-26 21:48:23 SERVER -> CLIENT: 250-mail.ultracore.it250-PIPELINING250-SIZE 134217728250-VRFY250-ETRN250-STARTTLS250-ENHANCEDSTATUSCODES250-8BITMIME250-DSN250 SMTPUTF8
2019-02-26 21:48:23 CLIENT -> SERVER: STARTTLS
2019-02-26 21:48:23 SERVER -> CLIENT: 220 2.0.0 Ready to start TLS
SMTP Error: Could not connect to SMTP host.
2019-02-26 21:48:23 CLIENT -> SERVER: QUIT
2019-02-26 21:48:23 SERVER -> CLIENT:
2019-02-26 21:48:23 SMTP ERROR: QUIT command failed:
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Mailer Error: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
我尝试将 cafile 切换到所有这些文件： files I tried
我做错了吗？这些文件在网站的 VPS 上，我已经通过 Mail-In-A-Box 的管理面板将证书应用到服务器。 我有 CloudFlare，但是地址 smtp.ultracore.it 不受 cloudflare 的保护，所有证书都是在 Mail VPS 地址上创建的，所以 ultracore.it 是用邮件地址创建的。ultracore.it, 不是网站的...
密码
echo (extension_loaded('openssl')?'SSL loaded':'SSL not loaded')."<br>";
returns这个
SSL loaded
您正在端口 587 上使用 SMTPSecure = 'ssl'（隐式 TLS），它需要显式 TLS (STARTTLS)。这在所有示例和文档中都有介绍。
当 STARTTLS 失败时，很可能是由于无效的证书或无效的 CA 证书，同样是 covered in the troubleshooting guide。
不要使用 POP-before-SMTP；那是一种非常古老的身份验证机制，不应使用。
我将设置 "verify_peer" 固定为 false，所以我的代码现在如下所示：
function sendEmail($from, $password, $to, $subject, $messageHtml)
{
$smtp_settings = array(
"debug" => 2,
"host" => "mail.ultracore.it",
"port" => 587,
"auth" => true,
"encryption" => "tls",
"reply_address" => "support@ultracore.it",
"peer_name" => "mail.ultracore.it",
"verify_peer" => false,
"verify_depth" => 3,
"allow_self_signed" => true,
"cafile" => "/var/www/html/certificates/ssl_certificate.pem"
);
$mail = new PHPMailer;
//Tell PHPMailer to use SMTP
$mail->isSMTP();
//Enable SMTP debugging
// 0 = off (for production use)
// 1 = client messages
// 2 = client and server messages
$mail->SMTPDebug = $smtp_settings['debug'];
//Set the hostname of the mail server
$mail->Host = $smtp_settings['host'];
//Set the SMTP port number - 587 for authenticated TLS, a.k.a. RFC4409 SMTP submission
$mail->Port = $smtp_settings['port'];
//Set the encryption system to use - ssl (deprecated) or tls
$mail->SMTPSecure = $smtp_settings['encryption'];
//Custom connection options
//Note that these settings are INSECURE
$mail->SMTPOptions = array(
'ssl' => [
'verify_peer' => $smtp_settings['verify_peer'],
'verify_depth' => $smtp_settings['verify_depth'],
'allow_self_signed' => $smtp_settings['allow_self_signed'],
'peer_name' => $smtp_settings['peer_name'],
'cafile' => $smtp_settings['cafile'],
],
);
//Whether to use SMTP authentication
$mail->SMTPAuth = $smtp_settings['auth'];
//Username to use for SMTP authentication - use full email address for gmail
$mail->Username = $from;
//Password to use for SMTP authentication
$mail->Password = $password;
//Set who the message is to be sent from
$mail->setFrom($from, 'First Last');
//Set who the message is to be sent to
$mail->addAddress($to, 'John Doe');
//Set the subject line
$mail->Subject = $subject;
//Read an HTML message body from an external file, convert referenced images to embedded,
//convert HTML into a basic plain-text alternative body
$mail->msgHTML($messageHtml, __DIR__);
//Send the message, check for errors
if (!$mail->send()) {
echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
echo 'Message sent!';
}
}