Body Hash Did Not Verify

[Gunther]

Hi there,
We have set up all the necessary settings for DMARC, SPF and DKIM records.
Everything looks fine but if we analyze the header we still get the message "Body Hash not verified" anyone has any idea why this happens?
We have this issue on Google Mails, MS O365 mails and even on Plesk sent emails.
Thanks for any hint

[DraztheNerd]

Hello Gunther,

I'm sharing a potential troubleshooting step copied and pasted from the following Google Workspace Admin Help Center Resource: Troubleshoot DKIM issues

Recommended step for email senders:

• Make sure the message wasn’t changed during transit. Find the Authentication-results: header. If the text next to the dkim entry is body hash did not verify, the message was modified during transit.
• If you use an outbound gateway, make sure it doesn't modify outgoing messages before they're sent. For example, some outbound gateways add a footer to the bottom of every outgoing message. This can cause DKIM to fail because message contents are changed after the message was sent.

If the above doesn't work for you maybe try contacting Google Workspace Support from within your Google Workspace Admin Console.

Best,

Draz the Nerd