process_contact.php

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $fname = strip_tags(trim($_POST["fname"]));
    $lname = strip_tags(trim($_POST["lname"]));
    $email = filter_var(trim($_POST["email"]), FILTER_SANITIZE_EMAIL);
    $subject = strip_tags(trim($_POST["subject"]));
    $message = strip_tags(trim($_POST["message"]));

    if (empty($fname) || empty($email) || empty($message)) {
        http_response_code(400);
        echo "Please fill out all required fields.";
        exit;
    }

    $recipient = "support@airdropinsider.io";
    $email_content = "Name: $fname $lname\n";
    $email_content .= "Email: $email\n\n";
    $email_content .= "Subject: $subject\n\n";
    $email_content .= "Message:\n$message\n";

    $email_headers = "From: $fname $lname <$email>";

    if (mail($recipient, $subject, $email_content, $email_headers)) {
        http_response_code(200);
        echo "Thank You! Your message has been sent.";
    } else {
        http_response_code(500);
        echo "Oops! Something went wrong and we couldn't send your message.";
    }
} else {
    http_response_code(403);
    echo "There was a problem with your submission, please try again.";
}
?>