diff --git a/src/Illuminate/Notifications/Channels/MailChannel.php b/src/Illuminate/Notifications/Channels/MailChannel.php
index 23a17ffd9918..d28241ac40a6 100644
--- a/src/Illuminate/Notifications/Channels/MailChannel.php
+++ b/src/Illuminate/Notifications/Channels/MailChannel.php
@@ -112,6 +112,7 @@ protected function buildView($message)
     protected function additionalMessageData($notification)
     {
         return [
+            '__laravel_notification_id' => $notification->id,
             '__laravel_notification' => get_class($notification),
             '__laravel_notification_queued' => in_array(
                 ShouldQueue::class, class_implements($notification)
diff --git a/tests/Integration/Notifications/SendingMailNotificationsTest.php b/tests/Integration/Notifications/SendingMailNotificationsTest.php
index 09864117a27c..3be53abc6cf7 100644
--- a/tests/Integration/Notifications/SendingMailNotificationsTest.php
+++ b/tests/Integration/Notifications/SendingMailNotificationsTest.php
@@ -13,6 +13,7 @@
 use Illuminate\Notifications\Notifiable;
 use Illuminate\Notifications\Notification;
 use Illuminate\Support\Facades\Schema;
+use Illuminate\Support\Str;
 use Mockery as m;
 use Orchestra\Testbench\TestCase;
 
@@ -69,6 +70,7 @@ protected function setUp(): void
     public function testMailIsSent()
     {
         $notification = new TestMailNotification;
+        $notification->id = Str::uuid()->toString();
 
         $user = NotifiableUser::forceCreate([
             'email' => 'taylor@laravel.com',
@@ -80,6 +82,7 @@ public function testMailIsSent()
         $this->mailer->shouldReceive('send')->once()->with(
             ['html' => 'htmlContent', 'text' => 'textContent'],
             array_merge($notification->toMail($user)->toArray(), [
+                '__laravel_notification_id' => $notification->id,
                 '__laravel_notification' => get_class($notification),
                 '__laravel_notification_queued' => false,
             ]),
@@ -112,6 +115,7 @@ public function testMailIsSent()
     public function testMailIsSentToNamedAddress()
     {
         $notification = new TestMailNotification;
+        $notification->id = Str::uuid()->toString();
 
         $user = NotifiableUserWithNamedAddress::forceCreate([
             'email' => 'taylor@laravel.com',
@@ -124,6 +128,7 @@ public function testMailIsSentToNamedAddress()
         $this->mailer->shouldReceive('send')->once()->with(
             ['html' => 'htmlContent', 'text' => 'textContent'],
             array_merge($notification->toMail($user)->toArray(), [
+                '__laravel_notification_id' => $notification->id,
                 '__laravel_notification' => get_class($notification),
                 '__laravel_notification_queued' => false,
             ]),
@@ -156,6 +161,7 @@ public function testMailIsSentToNamedAddress()
     public function testMailIsSentWithSubject()
     {
         $notification = new TestMailNotificationWithSubject;
+        $notification->id = Str::uuid()->toString();
 
         $user = NotifiableUser::forceCreate([
             'email' => 'taylor@laravel.com',
@@ -167,6 +173,7 @@ public function testMailIsSentWithSubject()
         $this->mailer->shouldReceive('send')->once()->with(
             ['html' => 'htmlContent', 'text' => 'textContent'],
             array_merge($notification->toMail($user)->toArray(), [
+                '__laravel_notification_id' => $notification->id,
                 '__laravel_notification' => get_class($notification),
                 '__laravel_notification_queued' => false,
             ]),
@@ -189,6 +196,7 @@ public function testMailIsSentWithSubject()
     public function testMailIsSentToMultipleAdresses()
     {
         $notification = new TestMailNotificationWithSubject;
+        $notification->id = Str::uuid()->toString();
 
         $user = NotifiableUserWithMultipleAddreses::forceCreate([
             'email' => 'taylor@laravel.com',
@@ -200,6 +208,7 @@ public function testMailIsSentToMultipleAdresses()
         $this->mailer->shouldReceive('send')->once()->with(
             ['html' => 'htmlContent', 'text' => 'textContent'],
             array_merge($notification->toMail($user)->toArray(), [
+                '__laravel_notification_id' => $notification->id,
                 '__laravel_notification' => get_class($notification),
                 '__laravel_notification_queued' => false,
             ]),