How can PHP scripts be optimized to ensure compatibility with different email providers?

To ensure compatibility with different email providers, PHP scripts can be optimized by using PHP's built-in mail function and ensuring that the email headers are correctly formatted. Additionally, it is important to handle errors gracefully and provide fallback options in case the email sending fails with one provider. 

$to = "recipient@example.com";
$subject = "Test Email";
$message = "This is a test email.";

$headers = "From: sender@example.com\r\n";
$headers .= "Reply-To: sender@example.com\r\n";
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";

if (mail($to, $subject, $message, $headers)) {
    echo "Email sent successfully";
} else {
    echo "Email sending failed";
}

Keywords

PHP email providers optimization compatibility scripts

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