symfony
diff --git a/‎src/Symfony/Component/Mailer/Bridge/Mailgun/Tests/Transport/MailgunApiTransportTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Mailer/Bridge/Mailgun/Tests/Transport/MailgunApiTransportTest.php
+4-4Lines changed: 4 additions & 4 deletions b/‎src/Symfony/Component/Mailer/Bridge/Mailgun/Tests/Transport/MailgunApiTransportTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Mailer/Bridge/Mailgun/Tests/Transport/MailgunApiTransportTest.php
+4-4Lines changed: 4 additions & 4 deletions
@@ -61,7 +61,7 @@ public function testCustomHeader()
         $deliveryTime = (new \DateTimeImmutable('2020-03-20 13:01:00'))->format(\DateTimeImmutable::RFC2822);
 
         $email = new Email();
-        $email->getHeaders()->addTextHeader('X-Mailgun-Variables', $json);
+        $email->getHeaders()->addTextHeader('h:X-Mailgun-Variables', $json);
         $email->getHeaders()->addTextHeader('h:foo', 'foo-value');
         $email->getHeaders()->addTextHeader('t:text', 'text-value');
         $email->getHeaders()->addTextHeader('o:deliverytime', $deliveryTime);
@@ -104,7 +104,7 @@ public function testPrefixHeaderWithH()
         $deliveryTime = (new \DateTimeImmutable('2020-03-20 13:01:00'))->format(\DateTimeImmutable::RFC2822);
 
         $email = new Email();
-        $email->getHeaders()->addTextHeader('bar', 'bar-value');
+        $email->getHeaders()->addTextHeader('h:bar', 'bar-value');
 
         $envelope = new Envelope(new Address('alice@system.com'), [new Address('bob@system.com')]);
 
@@ -176,15 +176,15 @@ public function testSendThrowsForErrorResponse()
             ->text('Hello There!');
 
         $this->expectException(HttpTransportException::class);
-        $this->expectExceptionMessage('Unable to send an email: "i\'m a teapot" (code 418).');
+        $this->expectExceptionMessage('Unable to send an email: i\'m a teapot (code 418).');
         $transport->send($mail);
     }
 
     public function testTagAndMetadataHeaders()
     {
         $json = json_encode(['foo' => 'bar']);
         $email = new Email();
-        $email->getHeaders()->addTextHeader('X-Mailgun-Variables', $json);
+        $email->getHeaders()->addTextHeader('h:X-Mailgun-Variables', $json);
         $email->getHeaders()->add(new TagHeader('password-reset'));
         $email->getHeaders()->add(new MetadataHeader('Color', 'blue'));
         $email->getHeaders()->add(new MetadataHeader('Client-ID', '12345'));