I keep getting this error on diagnosis after the latest updates

After around a week ago, after recent updates, I keep getting this error on diagnosis:

“No reverse DNS is defined in IPv4. Some emails may fail to get delivered or be flagged as spam.”

running a nslookup test shows that all is good regarding my DNS reverse, and the services are running fine, what could it be?

After today’s update the issue is gone, thanks for fixing it!

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