From 2dfec7b874ab4145a07a638429e58b9d601e52fb Mon Sep 17 00:00:00 2001
From: Pavel Popov <pavelpopovw@gmail.com>
Date: Mon, 9 Aug 2021 02:35:28 +0300
Subject: [PATCH] Ignore X-Transport while signing

---
 mailer.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mailer.rst b/mailer.rst
index bad5231c7f8..e4ba9a83fd4 100644
--- a/mailer.rst
+++ b/mailer.rst
@@ -1062,7 +1062,7 @@ key but not a certificate::
     $signedEmail = $signer->sign($email, (new DkimOptions())
         ->bodyCanon('relaxed')
         ->headerCanon('relaxed')
-        ->headersToIgnore(['Message-ID'])
+        ->headersToIgnore(['Message-ID', 'X-Transport'])
         ->toArray()
     );