<?php
// test_smtp.php
$host = 'smtp.hostinger.com';
$ports = [587, 465];

foreach ($ports as $port) {
    $connection = @fsockopen($host, $port, $errno, $errstr, 10);
    
    if (is_resource($connection)) {
        echo "✅ Port $port is OPEN\n";
        fclose($connection);
    } else {
        echo "❌ Port $port is CLOSED: $errstr ($errno)\n";
    }
}

// Test DNS
echo "DNS resolution: " . gethostbyname('smtp.hostinger.com') . "\n";