Le 22/10/2023 à 13:44, Jeremy Harris via Exim-users a écrit :
>
>> Dear Jeremy,
>>
>> I will send 3 email samples from the production server to your
>> private email address :
>> 1. with disclaimer
>> 2. without disclaimer but with DKIM signature
>> 3. with disclaimer and DKIM signature
>
> I received all three, and the signatures appear to be good
> (both as evaluated by my MRA, and as by the built-in in Thunderbird).
Dear Jeremy,
Thank you for considering the case.
I use mail-tester.com to test my mail server configuration.
I've just done it again. Cases 1 and 2 are both ok, whereas case 3 has
failed, with the following details :
======================================
DKIM signature :
v=1;
a=rsa-sha256;
q=dns/txt;
c=relaxed/relaxed;
d=XXXXXXXXXXXX;
s=dkim;
h=Content-Type:Message-ID:Subject:Date:MIME-Version:To:From:Sender:Reply-To:Cc: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-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive;
bh=63NW/yufriU/IxIXVLTm1de/Ms/WMrD4gB58AVbyOLI=;
b=CpL8lrU/F4CBeH14Z0XQiW4rJMFfxErIF+6xK7bxgDk3Fq3OsbcybzCBs94KKfJhgtrHHb9VVDu+FCY1qCqpm3DDzN+0c+9tKtVa3HR7UWB4E4bHweB2JpaKRl0JhP5drN9Alq+NJbBcViaAbleiKmB46fIZgmWYtP46EDK6rS/ug6Iyk7TRyRPqDNdpWX+kYsJHxvih7+HMJ1/rzt/FiBAndbu5TV/BvUi1Q4onU4Z7YP7TMUAKrhdN54NqS2eOCat9qu9W/pESw7xENyXkzMWGXHnqcToJBNleqNAp36ClRI946xNhl6xIa9hbX9jSi2FrkG6BYhfH3JYUrmWtew==;
Public key :
"v=DKIM1;
k=rsa;
p=MIIBITANBgkqhkiG9w0BAQEFAAOCAQ4AMIIBCQKCAQAzv3BvHbwGsHWZjnROtaNQMhzkL6yob0e7w2Sbatu3m7uwl89KnBbZBkmoxXsMcpK+f1XF7eahWm71f1hFqMP7cwQVwdQ/268NfXBt73zMcMgMqDPrVH5ptz93j/uTlIv9LNLbQww5fyYhzqgdBID+KSTUg2ykZmhMcsKr5ippWZS5reYAlm9f8/na9iEpGuaecpTTALQ1Pswlmrxc1x36nqxu9f++l+q7bWgORGs3nPcjLLNguYgrduDqxWEyTM23BH8LYleIBZj+JEBMHwKGSos7hLmngbZhTZFiYo6igOr6S2m3O0dFdMjvPzdlv8IG2Z2bVmwPw7rpt/KorTrfAgMBAAE="
key length : 2046bits
*Your DKIM signature is not valid*
======================================
To be noted : spamassassin also ends up with "DKIM_INVALID"
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