How are these being sent from your domain? that often means the formatting is breaking DKIM.
DKIM Signature Body Hash Verified

Hello,
I test send mail from mydomain to gmail, then i copy header from gmail then analyze the header to mxtoolbox.com and i got result "DKIM Signature Body Hash Verified". How we can solve this?
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Andy David - MVP 157.9K Reputation points MVP Volunteer Moderator
2023-09-27T11:44:19.3066667+00:00 -
Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff
2023-09-28T06:41:54.43+00:00 I found some similar threads, other users said that there are similar errors in DKIM verification in mxtoolbox.com, but it is valid in other tools.
So I recommended that you try some other tools to see if the issue persists, like:
(Note:The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.)
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