What are the best practices for setting up SMTP server configurations for sending emails through PHP scripts?

When setting up SMTP server configurations for sending emails through PHP scripts, it is important to ensure that the server settings are correctly configured to prevent emails from being marked as spam or not being delivered at all. This includes setting up proper authentication, encryption, and ensuring that the server is allowed to send emails on behalf of the sender's domain. 

// Example PHP code snippet for setting up SMTP server configurations
$to = "recipient@example.com";
$subject = "Test Email";
$message = "This is a test email sent via SMTP using PHP.";

// SMTP server settings
$smtpServer = 'smtp.example.com';
$smtpUsername = 'your_smtp_username';
$smtpPassword = 'your_smtp_password';
$smtpPort = 587; // or 465 for SSL
$from = 'sender@example.com';

// Create a new PHPMailer instance
$mail = new PHPMailer();

// Enable SMTP debugging
$mail->SMTPDebug = 0;

// Set SMTP server settings
$mail->isSMTP();
$mail->Host = $smtpServer;
$mail->SMTPAuth = true;
$mail->Username = $smtpUsername;
$mail->Password = $smtpPassword;
$mail->SMTPSecure = 'tls'; // or 'ssl' for SSL
$mail->Port = $smtpPort;

// Set email content
$mail->setFrom($from);
$mail->addAddress($to);
$mail->Subject = $subject;
$mail->Body = $message;

// Send the email
if ($mail->send()) {
    echo 'Email sent successfully';
} else {
    echo 'Error sending email: ' . $mail->ErrorInfo;
}

Keywords

SMTP server configurations sending emails PHP scripts best practices

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