Both are things which can plausibly be added by subsequent message
processing, and we should all this without breaking the signature.
DEFCONF(dkim_headers,m4_dnl
References:In-Reply-To:Subject:To:Date:Message-ID:m4_dnl
From:Sender:Reply-To:Cc:m4_dnl
DEFCONF(dkim_headers,m4_dnl
References:In-Reply-To:Subject:To:Date:Message-ID:m4_dnl
From:Sender:Reply-To:Cc:m4_dnl
-Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:m4_dnl
-Resent-Message-ID:m4_dnl
Content-Transfer-Encoding:Content-Type:MIME-Version:m4_dnl
Content-Transfer-Encoding:Content-Type:MIME-Version:m4_dnl
-Content-ID:Content-Description:m4_dnl
-List-Id:List-Help:List-Unsubscribe:List-Subscribe:m4_dnl
-List-Post:List-Owner:List-Archive)
+Content-ID:Content-Description)
## TLS certificate list.
DEFCONF(certlist,
## TLS certificate list.
DEFCONF(certlist,