Whilst investing this error I found
You’d definitely want to limit recursive queries to your local server, and not allow it for any user on the internet. That’s done with the “allow-recursion” directive, or there’s also an edit box in Webmin’s BIND module for it. So you should set “Do fully recursive lookups” to “Default”Fully Managed UK Hosting - Only £1+VAT till 1st Jan 2021 on Shared, Reseller and Dedicated Hosting! .... read more ....
another piece of advice said it this setting should be set to no. I’m not clear on the difference so trying no right now.
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