DKIM Signature Body Hash not verifying

[Volox]

I am having trouble with the DKIM signature body hash not verifying. MX Toolbox is reporting this problem when I ping test send an email to the delivery check tool.

When I go to the Email Deliverability for the domain, it shows the DKIM record as valid.

I am on cPanel 78.0.17 and my DNS is hosted on the same server as Exim. Is there a problem with the way Exim is signing? or the way MXToolbox is validating? Or is there somewhere else I should be looking?

 

[cPanelMichael]

Hello @Volox,

Can you open a support ticket so we can take a look at the actual record and verify it's setup correctly? You can post the ticket number here and we'll link this thread to it.

Thank you.

 

[Volox]

I have filed the support request ->
Your Support Request ID is: 11708161

 

[Martin Hinrichsen]

I have filed the support request ->
Your Support Request ID is: 11708161

Most likely related to custom keys for 3dparty DNS services. Have you been creating shortened DKIM keys eg 1024bit?

 

[cPanelMichael]

I have filed the support request ->
Your Support Request ID is: 11708161

To update, it looks like this was a false positive from MXToolBox. It's testing utility requires that DMARC is enabled for a domain in order for it to pass DKIM verification.

Thank you.