From f50bec1d8dc672d05cb2508ad3d3f98611de403a Mon Sep 17 00:00:00 2001
From: Christian Flothmann <christian.flothmann@qossmic.com>
Date: Fri, 3 Feb 2023 10:25:44 +0100
Subject: [PATCH] add Sender to the list of bypassed headers

---
 .../Bridge/Sendinblue/Transport/SendinblueApiTransport.php      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/Mailer/Bridge/Sendinblue/Transport/SendinblueApiTransport.php b/src/Symfony/Component/Mailer/Bridge/Sendinblue/Transport/SendinblueApiTransport.php
index eca54c2fd660d..0a43deb97f65d 100644
--- a/src/Symfony/Component/Mailer/Bridge/Sendinblue/Transport/SendinblueApiTransport.php
+++ b/src/Symfony/Component/Mailer/Bridge/Sendinblue/Transport/SendinblueApiTransport.php
@@ -136,7 +136,7 @@ private function prepareAttachments(Email $email): array
     private function prepareHeadersAndTags(Headers $headers): array
     {
         $headersAndTags = [];
-        $headersToBypass = ['from', 'to', 'cc', 'bcc', 'subject', 'reply-to', 'content-type', 'accept', 'api-key'];
+        $headersToBypass = ['from', 'sender', 'to', 'cc', 'bcc', 'subject', 'reply-to', 'content-type', 'accept', 'api-key'];
         foreach ($headers->all() as $name => $header) {
             if (\in_array($name, $headersToBypass, true)) {
                 continue;