On 2023-10-22 Jeremy Harris via Exim-users <exim-users@lists.exim.org> wrote: [...] > If (and there's the question) you think that a DKIM signature should > detect when a message has been modified, do you not think that > adding headers is a modification?
Hello, I think it depends on which the header would be added. Some additions should be allowed. Exim's default setting for dkim_sign_headers is extremely conservative and imho does not make sense. I had tried to discuss this in https://bugs.exim.org/show_bug.cgi?id=2394. I personally am using +From:+Sender:+Reply-To:+Subject:+Date:+Message-ID:+To:+Cc:+MIME-Version:+Content-Type:+Content-Transfer-Encoding:+Content-ID:+Content-Description:=Resent-Date:=Resent-From:=Resent-Sender:=Resent-To:=Resent-Cc:=Resent-Message-ID:+In-Reply-To:+References:=List-Id:=List-Help:=List-Post I am sure this set is not perfect and I have missed something, though. cu Andreas -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## exim-users-unsubscr...@lists.exim.org ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
