From 1071ec7e57438e79d78869826b3c98d6013a81eb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20FRANCE?=
 <frederic34@users.noreply.github.com>
Date: Mon, 26 Mar 2018 21:36:03 +0200
Subject: [PATCH] ignore Return-Path in dkim sign with swiftmailer

---
 htdocs/core/class/CMailFile.class.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/htdocs/core/class/CMailFile.class.php b/htdocs/core/class/CMailFile.class.php
index 0caf056eab638..47af9ba4ae03d 100644
--- a/htdocs/core/class/CMailFile.class.php
+++ b/htdocs/core/class/CMailFile.class.php
@@ -753,7 +753,7 @@ function sendfile()
                     $domainName = $conf->global->MAIN_MAIL_EMAIL_DKIM_DOMAIN;
                     $selector = $conf->global->MAIN_MAIL_EMAIL_DKIM_SELECTOR;
                     $signer = new Swift_Signers_DKIMSigner($privateKey, $domainName, $selector);
-                    $this->message->attachSigner($signer);
+                    $this->message->attachSigner($signer->ignoreHeader('Return-Path'));
                 }
 
                 if (! empty($conf->global->MAIN_MAIL_DEBUG)) {