fixed small mail setting

app/Http/Controllers/MarketingController.php

@@ -63,8 +63,15 @@ class MarketingController extends Controller
         ]);
 
         $locale = app()->getLocale();
-        $contactAddress = config('mail.contact_address', config('mail.from.address')) ?: 'admin@fotospiel.de';
+        $contactAddress = config('mail.contact_address', config('mail.from.address'));
 
+        if (! $contactAddress) {
+            throw ValidationException::withMessages([
+                'email' => __('marketing.contact.error_recipient_missing', [], $locale) ?: 'Anfrage derzeit nicht möglich. Bitte später erneut versuchen.',
+            ]);
+        }
+
+        try {
             Mail::raw(
                 __('emails.contact.body', [
                     'name' => $request->name,
@@ -80,6 +87,16 @@ class MarketingController extends Controller
             Mail::to($request->email)
                 ->locale($locale)
                 ->queue(new ContactConfirmation($request->name));
+        } catch (\Throwable $exception) {
+            Log::error('Contact form mail failed', [
+                'error' => $exception->getMessage(),
+                'code' => $exception->getCode(),
+            ]);
+
+            throw ValidationException::withMessages([
+                'email' => __('marketing.contact.error_send_failed', [], $locale) ?: 'Nachricht konnte nicht gesendet werden. Bitte versuche es später erneut.',
+            ]);
+        }
 
         return redirect()
             ->back()