php邮件的smtp配置

我使用 php 邮件功能从我的网站发送邮件。但现在它不起作用，我联系了我们的托管团队，然后他们告诉我使用 smtp，因为他们对服务器做了一些更改。我不知道该怎么做。当前代码（带有 php 邮件功能）如下，任何人都可以帮助我进行与此相关的更改。

<?php
$mail_To="[email protected]";
$headers = "";
$headers .= "From: [email protected]\n";
$headers .= "Reply-To: [email protected]\n";
$headers .= "MIME-Version: 1.0\n";
$headers .= "Content-type: text/html; charset=iso-8859-1\n";
$headers .= "X-Mailer: php";
$mail_Subject = " Live TV key";
$mail_Body = "<p>Muscle-tube</p>";
mail($mail_To, $mail_Subject, $mail_Body,$headers);
?>

PHP's mail()功能不支持 SMTP。你需要使用类似的东西PEAR 邮件包裹.

以下是 SMTP 邮件脚本示例：

<?php
require_once("Mail.php");

$from = "Your Name <[email protected]>";
$to = "Their Name <[email protected]>";
$subject = "Subject";
$body = "Lorem ipsum dolor sit amet, consectetur adipiscing elit...";

$host = "mailserver.blahblah.com";
$username = "smtp_username";
$password = "smtp_password";

$headers = array('From' => $from, 'To' => $to, 'Subject' => $subject);

$smtp = Mail::factory('smtp', array ('host' => $host,
                                     'auth' => true,
                                     'username' => $username,
                                     'password' => $password));

$mail = $smtp->send($to, $headers, $body);

if ( PEAR::isError($mail) ) {
    echo("<p>Error sending mail:<br/>" . $mail->getMessage() . "</p>");
} else {
    echo("<p>Message sent.</p>");
}
?>