Posting IP not server name

[Katsuhiro Kondou]

In article <05ee01c22a56$3a42de10$0a01a8c0 at gamma>,
	"Obantec Support" <support at obantec.net> wrote;

} My news server message ID's seem to be posting using the format
} 
} news:Xns9245910CFD760supportobantecnet at 111.222.333.444 where the IP is the
} news servers IP.
} (the IP does have reverse DNS)
} 
} I expected news:Xns9245910CFD760supportobantecnet at news.myserver.xyz
} 
} What have i missed

That kind of Message-ID is never created by nnrpd.
It looks like it's added by your reader software.
-- 
Katsuhiro Kondou