From fffff76c82e9ae10e32d018efd9d1e9dd8ba0109 Mon Sep 17 00:00:00 2001
From: jf-cbd <121934370+jf-cbd@users.noreply.github.com>
Date: Tue, 25 Aug 2026 16:08:51 +0200
Subject: [PATCH] =?UTF-8?q?=20N=C2=B09975=20-=20PHPmailer:=20Sending=20ema?=
 =?UTF-8?q?il=20with=20same=20headers=20as=20before=20(#1023)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Core/Email/Transport/SymfonyPHPMailTransport.php   | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/sources/Core/Email/Transport/SymfonyPHPMailTransport.php b/sources/Core/Email/Transport/SymfonyPHPMailTransport.php
index 7881ba4299..620ab2fb48 100644
--- a/sources/Core/Email/Transport/SymfonyPHPMailTransport.php
+++ b/sources/Core/Email/Transport/SymfonyPHPMailTransport.php
@@ -70,6 +70,13 @@ class SymfonyPHPMailTransport extends AbstractTransport
 		return $sHeaders;
 	}
 
+	public function prepareAdditionalParameters(SentMessage $message): string
+	{
+		$sender = $message->getEnvelope()->getSender()->getEncodedAddress();
+
+		return '-f'.escapeshellarg($sender);
+	}
+
 	protected function doSend(SentMessage $message): void
 	{
 		$oRawEmail = $message->getOriginalMessage();
@@ -82,8 +89,9 @@ class SymfonyPHPMailTransport extends AbstractTransport
 		$sSubject = $this->prepareSubject($oRawEmail);
 		$sBody = $this->prepareBody($oRawEmail);
 		$sHeaders = $this->prepareHeaders($oRawEmail);
+		$sAdditionalParameters = $this->prepareAdditionalParameters($message);
 
-		$success = mail($sTo, $sSubject, $sBody, $sHeaders);
+		$success = mail($sTo, $sSubject, $sBody, $sHeaders, $sAdditionalParameters);
 
 		if (!$success) {
 			throw new \RuntimeException('The mail() function failed to send the message. Check server mail configuration.');