DKIM failed test

1

Good day to all. I’m having problem with DKIM.

I’ve used https://dkimvalidator.com/ to test our DKIM. The results is shown below (Note: I’ve replaced our domain name with domain.com)

I’ve used the values in external DNS in MIAB

mail._domainkey.domain.com
mail._domainkey.box.domain.com

and set it in my registrar.

We are using the linode domain manager.

48 hours already have passed after I entered the DKIM values in the TXT of domain manager.

What’s should I do next to correct the failing DKIM?

DKIM Information:
DKIM Signature

Message contains this DKIM Signature:
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=onevoix.com; s=mail;
t=1682295377; bh=wHc5VSNj18BQUlC2Vy59GOlP/N2J2ljPdYN4mjYi5Z0=;
h=Date:From:To:Subject:From;
b=Kdv0al9cflyk77K1w4uOntBUNthhUATf2nn5lm9GBNwxjtdOU66y6uMoT1h9JOEFp
N1Y9hBz7dFY5yK9uhPUnzngcFdxLq5E2L2oFMsH1yi81oKMBDrqnyPJoaUU3FTJBG1
b7GOQPVqsvyZPskjbmn0aYKbSJ3KKgg3bDHN4hHuRFAYQ7Bc3NimAfcqLPek4cx9ZI
tMd/H9pG76TUFcfUonAHgnXvZ1s0ZqGxBNcskDBO/KPBoNTxBHusPmL5i0RBEhX9pN
1nsnjEsyU7FioHkwKs/MF2z3q8JrxTXt0xMSbMUIHYGNeSzciU7mUSe1ReUCYDDf0t
HB2tyZWWkauYA==

Signature Information:
v= Version: 1
a= Algorithm: rsa-sha256
c= Method: relaxed/simple
d= Domain: onevoix.com
s= Selector: mail
q= Protocol:
bh= wHc5VSNj18BQUlC2Vy59GOlP/N2J2ljPdYN4mjYi5Z0=
h= Signed Headers: Date:From:To:Subject:From
b= Data: Kdv0al9cflyk77K1w4uOntBUNthhUATf2nn5lm9GBNwxjtdOU66y6uMoT1h9JOEFp
N1Y9hBz7dFY5yK9uhPUnzngcFdxLq5E2L2oFMsH1yi81oKMBDrqnyPJoaUU3FTJBG1
b7GOQPVqsvyZPskjbmn0aYKbSJ3KKgg3bDHN4hHuRFAYQ7Bc3NimAfcqLPek4cx9ZI
tMd/H9pG76TUFcfUonAHgnXvZ1s0ZqGxBNcskDBO/KPBoNTxBHusPmL5i0RBEhX9pN
1nsnjEsyU7FioHkwKs/MF2z3q8JrxTXt0xMSbMUIHYGNeSzciU7mUSe1ReUCYDDf0t
HB2tyZWWkauYA==
Public Key DNS Lookup

Building DNS Query for mail._domainkey.onevoix.com
Retrieved this publickey from DNS: v=DKIM1; h=sha256; k=rsa; s=email; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkqWv4cOkGal9sM1O/1qnWhj1swAeIqrEkmh3Cn4Rs+Q+S5k8im+na9iWHH4MVvNBHHcD3h3iPZEq5z4oD9e99V7iPpMdriNbkVjDMzcmUHwSlRPbnksmiTFUFhvFFLsS8fL+M917Scn2otW6meWguHgjm4enoOiRigdVkkT0GK+MpyiHL+JcUlFDnokJAyg4MvPa9n58QV6PN2UfasexAwtDfgv2Z10Fdz6aLB/qup+Eah9Rn9QhRhEoEfZYbyJipXZp6YTkYw7gbsScNugN0qe4St0Qqhp73US9GM0IL2qMwyIZLf1GjkXekKReWaGoLtsEL4yAUT0ojm6his7tRQIDAQAB
Validating Signature

result = fail
Details: bad RSA signature

2

You can doublecheck if the quoted dkim dns entry corresponds to what MailinaBox tells you to enter. Also, perhaps this applies to your external dns provider. Which one are you using?

3

I’m using Linode DNS manager.

4

It’s working now. Thanks!

I’ve split up the DKIM signature by space and quotes.

“v=DKIM1; h=sha256; k=rsa; s=email; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1NHR9lYv1rZU2oaZyDCxkbbWHi7hyrrldehJ3kDmNvbABCd4j+f7qje1vtyVcJMYRLj+u46bJ8g9vM19zyIej5PxdmCxT5Ydq/e3yDUqeEiGEJ1FvRtpDkWLTGhaD8+6usJmVazbkkhbIPm” “sgNPDCDg3zDuU7BOUDZMwf9Lo+s+a3Zs+Culeld184lYN4pZgXjkraK/9Sy5Ydl8HyexLFCx3BGAM4xSq5/1Z7qFvBEI4J/6SGwH1Jxz1VTPy/NSxH4goSrFeLaTXl5dtbPUbAHWD35N8tn5vWwil5WjfZpGdGTUDNgbkEfYPy+pgmSNnYPTK54oAkxwkjMK5/2PGtwIDAQAB”