diff --git a/api/includes/mailer.php b/api/includes/mailer.php
index 6840eae..c140bd6 100644
--- a/api/includes/mailer.php
+++ b/api/includes/mailer.php
@@ -1,33 +1,31 @@
 <?php
 /**
- * Epic Travel Expeditions — SendGrid Mailer
+ * Epic Travel Expeditions — CyberMail Mailer
  */
 
 function sendgridSend(string $toEmail, string $toName, string $subject, string $htmlBody, string $textBody = ''): bool {
-    $apiKey = defined('SENDGRID_API_KEY') ? SENDGRID_API_KEY : '';
+    $apiKey = defined('CYBERMAIL_API_KEY') ? CYBERMAIL_API_KEY : '';
     if (!$apiKey || strpos($apiKey, 'YOUR_KEY') !== false) {
-        error_log('[EpicTravel mailer] SENDGRID_API_KEY not configured');
+        error_log('[EpicTravel mailer] CYBERMAIL_API_KEY not configured');
         return false;
     }
 
-    $payload = json_encode([
-        'personalizations' => [['to' => [['email' => $toEmail, 'name' => $toName]]]],
-        'from' => [
+    $payload = [
+        'from'    => [
             'email' => defined('MAIL_FROM') ? MAIL_FROM : 'noreply@epictravelexpeditions.com',
             'name'  => defined('MAIL_FROM_NAME') ? MAIL_FROM_NAME : 'Epic Travel Expeditions',
         ],
+        'to'      => [['email' => $toEmail, 'name' => $toName]],
         'subject' => $subject,
-        'content' => array_values(array_filter([
-            $textBody ? ['type' => 'text/plain', 'value' => $textBody] : null,
-            ['type' => 'text/html', 'value' => $htmlBody],
-        ])),
-    ]);
+        'html'    => $htmlBody,
+    ];
+    if ($textBody) $payload['text'] = $textBody;
 
-    $ch = curl_init('https://api.sendgrid.com/v3/mail/send');
+    $ch = curl_init('https://platform.cyberpersons.com/email/v1/send');
     curl_setopt_array($ch, [
         CURLOPT_RETURNTRANSFER => true,
         CURLOPT_POST           => true,
-        CURLOPT_POSTFIELDS     => $payload,
+        CURLOPT_POSTFIELDS     => json_encode($payload),
         CURLOPT_HTTPHEADER     => [
             'Authorization: Bearer ' . $apiKey,
             'Content-Type: application/json',
@@ -41,7 +39,7 @@ function sendgridSend(string $toEmail, string $toName, string $subject, string $
     curl_close($ch);
 
     if ($httpCode === 202) return true;
-    error_log('[EpicTravel mailer] SendGrid HTTP ' . $httpCode . ' — ' . $response);
+    error_log('[EpicTravel mailer] CyberMail HTTP ' . $httpCode . ' — ' . $response);
     return false;
 }