diff --git a/framework/core/src/Api/Controller/ShowMailSettingsController.php b/framework/core/src/Api/Controller/ShowMailSettingsController.php
index d699ee2b0..6fca5ffb1 100644
--- a/framework/core/src/Api/Controller/ShowMailSettingsController.php
+++ b/framework/core/src/Api/Controller/ShowMailSettingsController.php
@@ -41,11 +41,15 @@ class ShowMailSettingsController extends AbstractShowController
         $actual = self::$container->make('mail.driver');
         $validator = self::$container->make(Factory::class);
 
-        $errors = $configured->validate($settings, $validator);
+        if (method_exists($configured, 'validate')) {
+            $errors = $configured->validate($settings, $validator);
+        } else {
+            $errors = new \Illuminate\Support\MessageBag;
+        }
 
         return [
             'drivers' => $drivers,
-            'sending' => $actual->canSend(),
+            'sending' => method_exists($actual, 'canSend') ? $actual->canSend() : true,
             'errors' => $errors,
         ];
     }
diff --git a/framework/core/src/Mail/DriverInterface.php b/framework/core/src/Mail/DriverInterface.php
index 17fa26aa9..44215a17f 100644
--- a/framework/core/src/Mail/DriverInterface.php
+++ b/framework/core/src/Mail/DriverInterface.php
@@ -10,8 +10,6 @@
 namespace Flarum\Mail;
 
 use Flarum\Settings\SettingsRepositoryInterface;
-use Illuminate\Contracts\Validation\Factory;
-use Illuminate\Support\MessageBag;
 use Swift_Transport;
 
 /**
@@ -46,12 +44,14 @@ interface DriverInterface
      * presence of validation problems with the configured mail driver, Flarum
      * will fall back to its no-op {@see \Flarum\Mail\NullDriver}.
      */
-    public function validate(SettingsRepositoryInterface $settings, Factory $validator): MessageBag;
+    // TODO: Uncomment for beta.13
+    //public function validate(SettingsRepositoryInterface $settings, Factory $validator): MessageBag;
 
     /**
      * Does this driver actually send out emails?
      */
-    public function canSend(): bool;
+    // TODO: Uncomment for beta.13
+    //public function canSend(): bool;
 
     /**
      * Build a mail transport based on Flarum's current settings.
diff --git a/framework/core/src/Mail/MailServiceProvider.php b/framework/core/src/Mail/MailServiceProvider.php
index 024757f2f..34fd2b504 100644
--- a/framework/core/src/Mail/MailServiceProvider.php
+++ b/framework/core/src/Mail/MailServiceProvider.php
@@ -36,9 +36,13 @@ class MailServiceProvider extends AbstractServiceProvider
             $settings = $this->app->make(SettingsRepositoryInterface::class);
             $validator = $this->app->make(Factory::class);
 
-            return $configured->validate($settings, $validator)->any()
-                ? $this->app->make(NullDriver::class)
-                : $configured;
+            if (method_exists($configured, 'validate')) {
+                return $configured->validate($settings, $validator)->any()
+                    ? $this->app->make(NullDriver::class)
+                    : $configured;
+            } else {
+                return $configured;
+            }
         });
 
         $this->app->alias('mail.driver', DriverInterface::class);