diff --git a/src/Symfony/Bridge/Twig/Mime/BodyRenderer.php b/src/Symfony/Bridge/Twig/Mime/BodyRenderer.php
index 2f1a1fb049e7..1af04720d141 100644
--- a/src/Symfony/Bridge/Twig/Mime/BodyRenderer.php
+++ b/src/Symfony/Bridge/Twig/Mime/BodyRenderer.php
@@ -13,6 +13,7 @@
 
 use League\HTMLToMarkdown\HtmlConverter;
 use Symfony\Component\Mime\BodyRendererInterface;
+use Symfony\Component\Mime\Exception\InvalidArgumentException;
 use Symfony\Component\Mime\Message;
 use Twig\Environment;
 
@@ -44,7 +45,12 @@ public function render(Message $message): void
             return;
         }
 
-        $vars = array_merge($this->context, $message->getContext(), [
+        $messageContext = $message->getContext();
+        if (isset($messageContext['email'])) {
+            throw new InvalidArgumentException(sprintf('A "%s" context cannot have an "email" entry as this is a reserved variable.', TemplatedEmail::class));
+        }
+
+        $vars = array_merge($this->context, $messageContext, [
             'email' => new WrappedTemplatedEmail($this->twig, $message),
         ]);
 
diff --git a/src/Symfony/Bridge/Twig/Tests/Mime/RendererTest.php b/src/Symfony/Bridge/Twig/Tests/Mime/BodyRendererTest.php
similarity index 80%
rename from src/Symfony/Bridge/Twig/Tests/Mime/RendererTest.php
rename to src/Symfony/Bridge/Twig/Tests/Mime/BodyRendererTest.php
index 3c40e6d7ee04..6eeade3a737a 100644
--- a/src/Symfony/Bridge/Twig/Tests/Mime/RendererTest.php
+++ b/src/Symfony/Bridge/Twig/Tests/Mime/BodyRendererTest.php
@@ -14,11 +14,12 @@
 use PHPUnit\Framework\TestCase;
 use Symfony\Bridge\Twig\Mime\BodyRenderer;
 use Symfony\Bridge\Twig\Mime\TemplatedEmail;
+use Symfony\Component\Mime\Exception\InvalidArgumentException;
 use Symfony\Component\Mime\Part\Multipart\AlternativePart;
 use Twig\Environment;
 use Twig\Loader\ArrayLoader;
 
-class RendererTest extends TestCase
+class BodyRendererTest extends TestCase
 {
     public function testRenderTextOnly(): void
     {
@@ -54,7 +55,13 @@ public function testRenderTextAndHtml(): void
         $this->assertEquals('<b>HTML</b>', $body->getParts()[1]->bodyToString());
     }
 
-    private function prepareEmail(?string $text, ?string $html): TemplatedEmail
+    public function testRenderWithContextReservedEmailEntry(): void
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->prepareEmail('Text', '', ['email' => 'reserved!']);
+    }
+
+    private function prepareEmail(?string $text, ?string $html, array $context = []): TemplatedEmail
     {
         $twig = new Environment(new ArrayLoader([
             'text' => $text,
@@ -63,7 +70,11 @@ private function prepareEmail(?string $text, ?string $html): TemplatedEmail
             'image.jpg' => 'Some image data',
         ]));
         $renderer = new BodyRenderer($twig);
-        $email = (new TemplatedEmail())->to('fabien@symfony.com')->from('helene@symfony.com');
+        $email = (new TemplatedEmail())
+            ->to('fabien@symfony.com')
+            ->from('helene@symfony.com')
+            ->context($context)
+        ;
         if (null !== $text) {
             $email->textTemplate('text');
         }