带有PHP Mailer的PHP电子邮件

我正在创建一个表单，该表单将电子邮件发送到其中输入的电子邮件。我已经在服务器上安装了PHP邮件程序。

当前，当通过PHP发送电子邮件时，它们的发送方式如下：

当我希望它们发送的所有电子邮件都是通过托管服务器发送的。

就像在域上发送的任何其他电子邮件一样，这些电子邮件应通过domain.com而不是服务器邮寄。

我只是在测试它，因此使用简单的形式作为概念证明。

<form method="post" name="process.php" action="process.php">
<p>Name:</p><br><input type="text" name="name"><br><br>
<p>Email Address:</p><br><input type="text" name="email"><br><br>
<br>
<input type="submit" value="Send Email">
</form>

然后，我使用此PHP发送电子邮件：

<?php
$name = $_POST['name'];
$email = $_POST['email'];

use PHPMailer\PHPMailer\PHPMailer;
require 'vendor/autoload.php';
$mail = new PHPMailer;
$mail->isSMTP();
$mail->SMTPDebug = 2;
$mail->Host = 'smtp.hostinger.com';
$mail->Port = 587;
$mail->SMTPAuth = true;
$mail->Username = '[email protected]';
$mail->Password = 'password';

$email_from = "[email protected]";
$email_subject = "Test Email";

$to = $email;
$headers = "From: [email protected] \r\n";
$headers .= "Bcc: [email protected] \r\n";
$headers .= "Reply-To: [email protected] \r\n";
$headers .= "Content-Type: text/html; charset=UTF-8\r\n";


$email_body = <<<EOM
<p color="#000000">Hello, $name.<br><br> This is a test email for mailing from the domain rather than the server.<br><br> </p>
EOM
    ;

mail($to, $email_subject, $email_body, $headers);

?>

基本上，我希望通过我的域发送PHP电子邮件，但我不知道该怎么做，因此不胜感激，我的网络托管服务商似乎无法帮助我。

提前致谢。

UPDATE

此代码为表格。

<h1>The email gets sent to a bookings address.</h1>

<form method="post" name="process.php" action="process.php">
<p class= "whitetextsubsmall">Name:</p><br><input type="text" name="name"><br><br>
<p class= "whitetextsubsmall">Email Address:</p><br><input type="text" name="email"><br><br>
<br>
<input type="submit" value="Send Email">
</form>

而这个代码 process.php

<?php
$name = $_POST['name'];
$email = $_POST['email'];

use PHPMailer\PHPMailer\PHPMailer;
require 'vendor/autoload.php';
$mail = new PHPMailer;
$mail->isSMTP();
$mail->SMTPDebug = 2;
$mail->Host = 'smtp.hostinger.com';
$mail->Port = 587;
$mail->SMTPAuth = true;
$mail->Username = '[email protected]'; /* This is the sender of the bookings. */
$mail->Password = 'password';


$mail->setFrom('[email protected]');
$mail->addAddress('[email protected]', 'Company Bookings');
$mail->addReplyTo($email, $name); /* Reply to the user who submitted the form from the bookings email. */
$mail->Subject = 'Booking Request Test';

$mail->isHTML(TRUE);
$mail->Body = 'Message test <br> Booking Request from: $name <br><br> Email: $email.';

if(!$mail->send()) {
  echo 'Message was not sent.';
  echo 'Mailer error: ' . $mail->ErrorInfo;
} else {
  echo 'Message has been sent.';
}
?>