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On Thu, 2022-03-24 at 16:48 +0100, Benny Pedersen wrote:
> > Is it possible to add records for non-existing domains to the RPZ?

I think so.

> what is the point ?

Presumably to create those domains locally. Of course the rest of the
world won't see them.

For example, I have some clients using a sendmail milter, which for some
users requires matching forward/reverse dns. And there are some senders
that just cannot seem to get that right. So we add

1.0.0.127.in-addr.arpa    PTR     outbound.example.com.
outbound.example.com      A       127.0.0.1

to force matching forward/reverse dns. But that creates the name
outbound.example.com locally, where that name does not exist in the
global name space.


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